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A Giant Crater in Siberia Is Belching Up Russia’s Past

NYT Global Warming Climate Change - May 23, 2024 - 15:32
A yawning hole in the Siberian landscape should be a warning about the dangers of extraction.
Categories: Climate

Senate Democrats Open Inquiry Into Trump’s $1 Billion Request of Oil Industry

NYT Global Warming Climate Change - May 23, 2024 - 15:08
Two committees are seeking information from oil executives about a dinner where, the lawmakers say, the former president proposed a quid pro quo.
Categories: Climate

Danger Season 2024: It’s Already Started

Ahead of Memorial Day, the unofficial kick-off of summer, we are back with an annual warning that gets more pointed each year: it is now Danger Season 2024, and everyone needs to be ready. Because the hits are coming, and they’re going to hurt.

“Danger Season” refers to the warmer months when, turbo-charged by climate change, extreme events like heat waves, heavy rainfall, wildfires, and poor air quality bring miserable and often dangerous, conditions. You already know you’re not experiencing the summers of your youth (given the accelerating pace of climate change, this applies to almost anyone who can read this post). It’s important to know, also, that climate change isn’t going to unfold for us in barely perceptible increases in temperature, upticks on a graph we can scan in the morning news. It’s going to crash into our lives in the form of damaging, even devastating, extreme events, particularly in Danger Season.

Here at UCS, we’re tracking Danger Season impacts on a daily basis with this interactive tool, capturing and communicating the climate change connections, highlighting harm to vulnerable people, and talking about what we can do to prepare, to build equitable resilience, and to slow down this runaway climate train with a fast, fair phaseout of fossil fuels and accountability for the fossil fuel companies whose deception and delay tactics played a huge role in getting us into this mess—and who continue to profit as people suffer.

What happened to summer?

Summers–and all the seasons–happen because of Earth’s tilt on its axis as it orbits the sun. With this tilt, the Northern Hemisphere will face more directly toward the sun during the May through August stretch of the orbit, causing us to experience summer, while from December-February the tilt causes the Southern Hemisphere to experience summer. “Danger Season” follows that more direct gaze of the sun. With fossil-fuel pollution trapping heat and driving up global average temperatures, those warmer months are warmer than ever. And, in human history, I do mean ever. Higher ocean and air temperatures manifest in storms, heat, precipitation, drought and wildfires that can be more intense, more frequent, and/or longer lasting.

This NASA graphic captures how climate change affects the extreme weather that tends to play out in Danger Season. Watch the full animation here: https://science.nasa.gov/wp-content/uploads/2023/11/ExtremeEventsGraphic.mp4

Wherever one lives in the U.S., these trends are inescapable. Whether we’re under the orange skies millions experienced last summer amidst smoke from Canadian wildfires or evacuation orders from those same fires, whether unnerving or downright traumatizing, climate change is making its presence known, and these warm months—Danger Season—are its main stage.

Now, is every extreme weather event we experience made worse by climate change? No. But we know that climate change has made many disasters more frequent and more severe. Scientific analysis, called “event attribution,” can help quantify whether and how the fingerprint of climate change impacted a particular event, and these analyses are often available in rapid response formats following a disaster.

What’s happening with this summer?

Any sense that climate change would unfold gradually was laid to rest in 2023 when so many significant climate records were shattered by previously unthinkable margins. The first few months of 2024 have seen the continued march of record global heat conditions. April marked the 11th hottest month on record.

Source: https://climate.copernicus.eu/copernicus-global-temperature-record-streak-continues-april-2024-was-hottest-record

Average ocean temperatures have also been at record levels since May of 2023.

Source: https://climatereanalyzer.org/clim/t2_daily/?dm_id=world

This heat was enabled in part by the fact that we were in the El Niño phase of the so called El Niño Southern Oscillation inter-annual climate cycle. El Niño typically drives higher global average temperatures. Here in 2024, we are seeing the transition from El Niño to a neutral phase, and we can likely expect a shift to La Niña to happen late this summer. Given that global average ocean temperatures remain at record high levels, and air temperatures continue to break records, there’s uncertainty about how summer 2024 will play out. But here’s what NOAA, our federal climate agency, is currently forecasting.

  • Widespread above-normal heat

The forecast for July through September is for above-normal heat conditions from coast to coast, with highest heat risk in parts of the country—like the Southwest and Texas—that weathered unprecedented heat last year.

Source: https://www.cpc.ncep.noaa.gov/products/predictions/long_range/seasonal.php?lead=3
  • A hectic hurricane season

Just this morning, NOAA released its Atlantic hurricane season outlook, anticipating an above-normal and possibly record-breaking season. The North Atlantic remains incredibly hot, and hot water is a hurricane’s source of fuel. With the official start of hurricane season next week, we’re entering a “hope for the best, prepare for the worst” situation.

Source: https://www.noaa.gov/news-release/noaa-predicts-above-normal-2024-atlantic-hurricane-season
  • Precipitation and drought forecast

An updated drought forecast will be released next week, but at this time, drought persistence and development are forecast for large areas of the Northwest, Southwest and South Central U.S.

Source: https://www.drought.gov/data-maps-tools/us-seasonal-drought-outlook

It is worth noting that the drought conditions our northern and southern neighbors are facing are currently far more severe, with much of Mexico facing severe, extreme, or exceptional drought.

  • Wildfire forecast

Atmospheric rivers doused California with such exceptional rainfall earlier this year that the threat of wildfire there has for now been greatly tamped down (though this also spurred the growth of vegetation that will fuel future fires). The persistent dry conditions in Canada, unfortunately, point to an active wildfire season there, with potentially harmful air quality impacts for Canadian territories and U.S. states downwind. And Hawaii, still reeling and recovering from last year’s devastating wildfires, faces another season of wildfire risk.

Source: https://www.nifc.gov/nicc-files/predictive/outlooks/NA_Outlook.pdf What we’re already seeing on the ground

It’s the third week in May, and already we’re seeing extremes that alarm us in their magnitude and hurt like hell on the ground.

Canadian wildfires are once again burning and compromising air quality in the Midwest.

A prolonged heat wave has beset a large swath of the Southeast. In Florida, Key West was shocked with 115 degree Fahrenheit heat index conditions last week, tying the all-time record high temperature in the middle of May.

Source: https://x.com/BMcNoldy/status/1790880195609547084

Much of Puerto Rico has endured heat index conditions well over 100 degrees. And Texas… whew.

The derecho that slammed down in Texas earlier this week has left the Houston area reeling and the recovery situation is being made much worse by early-season extreme heat, an outbreak of mosquitoes, some of which are testing positive for West Nile Virus, and power outages which, though largely addressed, left hundreds of thousands of people without electricity and air conditioning over a miserable several days.

The official start of summer may be a month away, but Danger Season has begun.

What’s next?

As outlined above, the forecasts are coming into better focus. Inevitably, it promises to be a dangerous season. And given the enduring inequity and legacy of racism across the nation, it promises to harm marginalized and historically disadvantaged people most. Tune in soon for my colleague Juan Declet-Barreto’s take on the outlook for inequitable harm as the season’s impacts unfold.

We’ll be tracking the 2024 Danger Season in our daily-updated web feature, and with quick-breaking analyses focused on issues of racial equity. We’ll be flagging fossil fuel accountability for climate harm. And we’ll be calling for more ambitious climate action on both heat-trapping emissions reductions (e.g., the clean energy transition and a modernized grid) and adaptation (e.g., just and climate-informed preparedness and recovery efforts in the wake of inevitable disasters).

Follow us on social media for rapid response updates as situations unfold.

Stay tuned, prepare now, and let’s try to stay safe.

Categories: Climate

2024 Hurricane Season Is Expected to Be Abnormally Busy, NOAA Predicts

NYT Global Warming Climate Change - May 23, 2024 - 14:11
The Atlantic hurricane season is looking to be an extraordinary one, with 17 to 25 named storms predicted, experts said.
Categories: Climate

Snow worries: Australia’s ski resorts turn to snowmakers with slopes bare ahead of winter

The Guardian Climate Change - May 23, 2024 - 11:00

WeatherZone predicts no significant snowfalls for five major downhill ski resorts in NSW and Victoria before season kicks off on June long weekend

With winter just around the corner, temperatures are plunging but Australia’s ski slopes are looking bare, prompting fears that the country’s best snow spots are set for an underwhelming peak season.

The weather service WeatherZone has predicted there will be no significant snowfalls for Australia’s five major downhill ski resorts – all in New South Wales and Victoria – before the ski season kicks off on the King’s Birthday long weekend in June.

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Categories: Climate

Alarm as German climate activists charged with ‘forming a criminal organisation’

The Guardian Climate Change - May 23, 2024 - 08:32

Action against Letzte Generation could have ‘immense chilling effect’ on climate protest, campaigners say

Five members of Letzte Generation, Germany’s equivalent to Just Stop Oil, have been charged with “forming a criminal organisation”, a move civil rights campaigners say could in effect criminalise future support for the climate campaign.

Mirjam Herrmann, 27, Henning Jeschke, 22, Edmund Schulz, 60, Lukas Popp, 25, and Jakob Beyer, 30, were charged under section 129 of the German criminal code. It is believed to be the first time the law has been applied to a non-violent protest group.

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Categories: Climate

Wildfires and Power Grid Failures Continue to Fuel Each Other

It’s that time of the year again, when many of us are relieved that the bitter cold weather is finally behind us, yet apprehensive about the dangerously extreme weather events that are likely to come. May is not only the first month of Danger Season, it is also wildfire awareness month, according to the Federal Emergency Management Agency (FEMA).

With high-fire-risk months still ahead of us, 2024 has seen significant wildfire damage already. The largest fire so far this year has been the Smokehouse Creek Fire in Texas, which tends to experience the most wildfires in winter, unlike western states. The fire was the largest in the state’s history, burning more than a million acres, killing two people, and passing within a few miles of a nuclear weapons facility in the area.

The Smokehouse Creek fire, along with smaller fires that burned in the region simultaneously, also knocked out power for thousands of people, due to both preemptive shutoffs of power lines, as well as direct grid damage.

In this case, grid damage appears to have sparked the Smokehouse Creek Fire as well. Xcel Energy acknowledged its equipment’s apparent role in igniting it, and about a month later, the same utility company preemptively shut off power to 55,000 of its Colorado customers to prevent another fire from being sparked in that state.

Grid failures can cause wildfires. Wildfires and fire risk can cause more grid failures. In this blog post I’ll walk through how wildfires and grid failures have exacerbated each other in recent years and continue to do so, sometimes in deadly ways.

But first, it’s critical to understand this phenomenon’s connection to climate change. Both fossil fuel and utility companies bear some responsibility for wildfires’ damage, and must be held accountable to ensure disadvantaged and low-income communities aren’t left to shoulder the costs and impacts of these disasters. With that, let’s get into the details.

Emissions fuel more wildfires

Since 1960, the five years with the most area burned by US wildfires have all been within the last 20 years. While 2023 was a low year in terms of total acreage burned in the United States, some 2.6 million acres were still consumed by wildfires, including in Maui where one of the deadliest fires in US history killed more than 100 people. In addition, Canada experienced its worst wildfire season on record last year, which drove significant reductions in air quality in certain parts of the country as well as the United States.

Forests in western North America are particularly susceptible to wildfires due to development, land management, and climate change. The rising amount of area burned is attributable in part to an increase in “vapor pressure deficit”, which is essentially a measure of the air’s ability to dry out plants and soil.

Last year, my UCS colleagues working on climate science and corporate accountability found, in a peer-reviewed study, that 37% of the area burned in western North America since 1986 is attributable to the carbon emissions of just 88 fossil fuel companies and cement manufacturers. That 37% equates to 19.8 million acres scorched in the western United States and southwestern Canada.

While climate change has not been specifically linked to the Maui and Texas wildfires, broken power lines are being investigated as a cause of both of them. These would not be one-off instances if the power lines are found to have sparked the fires; this is a growing problem that more and more utilities, and the communities they serve, are having to grapple with. So how extensive is this problem and how does it happen?

Grid failures start fires

From 2001 to 2023, roughly 92 million acres in the United States have been burned by lightning-caused fires, and about 68 million acres have been burned by fires caused by human activity, electrical operations being just one example. Fires sparked by failures of power lines and associated grid equipment present an area of increasing concern in the era of climate change, with a geographic scope that appears to be expanding within the United States.

A utility industry group executive recently told the New York Times that utilities’ equipment causes less than 10% of fires nationally. That percentage was actually the same for wildfires between 2016-2020 in California – a high-risk wildfire state.

However, those California fires caused by electrical equipment accounted for 19% of the total acreage burned in the state during the same period, and in some years, they accounted for the majority of the burned acreage. This discrepancy between number of fires and area burned by fires aligns with research finding that human-caused fires spread more rapidly than naturally caused fires, since human-caused fires tend to start in hotter, drier conditions.

Source: California State Auditor

There are various mechanisms through which electrical operations can spark wildfires, both on transmission and distribution grids. Downed power lines can remain “energized” as they fall to the grass below. Trees and other vegetation can come into contact with lines and create an improper flow of electricity (called a fault), causing sparks to fly. Parallel lines can even blow in the wind and “slap” together, creating a different type of fault and a fire-ignition risk.

Many fires are put out before they grow to a dangerous size. The grid equipment of California utilities, for example, starts hundreds of fires every year, but most of them are put out rather quickly before spreading.  

The last five years of compiled California data show hundreds of fires sparked each year by equipment of the state’s three largest investor-owned utilities, led by Pacific Gas & Electric in the northern part of the state. Most fires are extinguished before spreading far, but the small number of fires that grow to hundreds or thousands of acres can cause significant devastation. | Source: California Public Utilities Commission. | Note: Six PG&E fires with a reported size of “Unknown” or “Other” were excluded from the table.

However, extinguishing fires is challenging in dry, warm, and windy weather conditions, which are only getting worse with climate change and can spread fire at a terrifyingly high rate. In November 2018, the Camp Fire in northern California was sparked by a nearly 100-year old transmission line owned by Pacific Gas & Electric (PG&E), which negligently failed to properly maintain it. The wildfire spread across more than 150,000 acres, killed 85 people, and destroyed the California towns of Paradise and Concow, with most of the damage taking place in just the first four hours. The resulting liabilities helped push PG&E into one of the most complex bankruptcy cases in US history.

PG&E emerged from bankruptcy back in 2020 and is gradually doing the long-overdue work needed to improve the safety of its infrastructure, but this will be a long process, and the company’s equipment has started multiple other deadly fires since the Camp Fire.

Utilities outside of California are also facing liabilities for their potential roles in starting wildfires, including Xcel Energy in Texas as previously mentioned, and Hawaiian Electric in Maui. Berkshire Hathaway subsidiary PacifiCorp expects it could face $8 billion in liabilities for fires it may have started in both California and Oregon.  

As wildfire risk worsens with climate change, more and more utilities are increasingly turning to a risk-management method that was not common at all just a decade ago: purposely shutting off power to customers, as I mentioned above.

Fire risk forces intentional grid shutoffs

On a fateful dry, windy day in early November 2018, PG&E announced that it was no longer planning to shut off power to customers in northern California because weather conditions had improved, making its grid infrastructure safe to operate. Later that day, the Camp Fire was ignited by PG&E equipment, starting the deadliest wildfire in California’s history.

Had PG&E either properly maintained its infrastructure, or decided to shut off the power that day, 85 people likely would not have lost their lives. This tragedy, along with thousands of other utility-caused fires, is why PG&E and other California utilities have since formalized so-called public safety power shutoff programs. The idea is that if utilities “de-energize” their power lines until the unsafely dry and windy weather conditions subside, a wildfire won’t be sparked.

The resulting tradeoffs for utility customers, who are left temporarily without power, range from minor inconveniences to full-blown matters of life and death. When PG&E proceeded with a 2-million-customer public safety power shutoff event in 2019, Robert Mardis Sr.–a man who used an electric oxygen tank to aid his breathing–tragically died just minutes after his power was shut off.

In 2022, my UCS colleague Mark Specht authored a blog post analyzing public safety power shutoff events in California, finding that utilities have reduced the overall scope of these events since PG&E’s large 2019 power shutoff. But the power shutoff events continued to last quite long, averaging one to two days, and this practice persists to this day. Southern California Edison shut off power to more than 5,000 customers as recently as December 2023, with the event lasting roughly two days.

While this method of managing wildfire risk can be annoying, inequitable, and sometimes outright dangerous, utilities outside of California are nevertheless increasingly turning to it due to wildfires’ catastrophic potential. A number of states have either already experienced public safety shutoffs, or are served by utilities that have formed protocols to declare such events. These states include Nevada, Oregon, Washington, Colorado, Texas, Utah, New Mexico, Idaho, Arizona, and Louisiana.

To sum it up, wildfire risk is making our grid less reliable due to the resulting need for public safety shutoff events. But even with such programs in place, fires of course still break out, and can have an even more direct impact on the power grid.

Wildfires pose direct, physical threats to power grid

Wildfires can impact many key components of the power grid, including transmission lines, distribution lines, and even generation facilities such as power plants.

Transmission lines are typically suspended high above ground by steel or aluminum towers, making them relatively well-positioned to avoid direct destruction by wildfires, although destruction still occurs in extreme cases. But fires can also cause transmission lines to “trip” offline automatically as a protective measure to isolate “faulty”, or unsafe, electric current from the rest of the grid. Wildfires’ intense heat can cause excessive line sagging toward the ground, and the soot and smoke in the air can weaken the lines’ insulation, both of which can make faults more likely.

Distribution lines are buried underground more often than transmission lines, which protects them from wildfire damage. But aboveground distribution lines are still very common and many of them are suspended by wooden poles, making them more vulnerable than transmission lines to being burned down completely. From 2000 to 2016, wildfire damage to California’s transmission and distribution systems amounted to more than $700 million.

Wildfire also poses risks to generation facilities, even though that subject is less discussed than the threat to transmission and distribution. Smoky and sooty air can decrease output from solar facilities, and fires themselves can sometimes directly threaten fossil fuel power plants. In 2019, a fire in Maui came within 150 feet of an oil-fired power plant. In 2021, a fire breached a coal plant in Turkey, prompting evacuations and the removal of explosive substances from the plants.

The US Government Accountability Office (GAO) also published a report earlier this year recommending that the Nuclear Regulatory Commission (NRC) better account for climate impacts in its risk assessments of nuclear plants, including the risk from wildfires. The report found that roughly 20% of the nation’s nuclear plants are located in areas with high, or very high, wildfire risk.

In addition to increasing the potential for onsite fires at nuclear plants, wildfires can cut off external grid power that the plants need for keeping their reactors cool. Once grid power is cut off, the plants must resort to onsite sources of backup power, such as diesel generators. A complete and prolonged cutoff of external power would lead to a disastrous meltdown similar to that of the Fukushima Daiichi plant in 2011. While US regulators implemented additional safeguards in the wake of that disaster, questions remain about their effectiveness.

Looking ahead – managing wildfire risks

We’ve entered a new era of wildfire damage, and we know that, at least in the western United States, this is due, at least in part, to climate change. While we should continue to mitigate these changes to the global climate by transitioning to a clean energy economy, we are now well into the phase of adapting to this new world and managing the “locked-in” risks that lie ahead.

Policymakers and utilities must act on the wide array of environmental justice and equity considerations while proceeding with this wildfire risk management. Understanding these evolving threats to communities will require good data collection on utility-caused fires, and a commitment to transparency. California currently appears to be an outlier in publishing such data. Other states must do better.

In any case, it’s safe to assume there are going to be many disruptions and costly changes moving forward, and these impacts must be alleviated for already-disadvantaged communities. For example, there are solutions that can mitigate the impacts of public safety power shutoff events, which can be very dangerous for those living with disabilities. Utilities can also be proactive in using the wide array of available wildfire modeling tools, and can make investments to ensure that the same households aren’t getting hit with public safety shutoff events over and over again.

But another area that deserves a whole separate blog is the enormous costs that come with such wildfire adaptation investments. Utilities in California are spending enormous amounts of money on undergrounding power lines, trimming trees, installing fire-detection equipment, and other measures aimed at reducing the risk of sparking another catastrophic blaze.

As the potential grows for similar wildfire investments to spread beyond California, policymakers must use their authority to minimize the resulting economic harm to low-income ratepayers. Those ratepayers are already spending far too much of their incomes on energy bills and, of course, they’re not responsible for the situation we’re in.

Emissions traced to fossil fuel companies, on the other hand, have contributed to 19.8 million acres of wildfires’ destruction in the western half of the continent, as the previously mentioned UCS study found last year.

The UCS study also called for fossil fuel companies to pay their fair share of climate-related damages. Ongoing climate-damage and deception lawsuits brought by more than three dozen US states, cities and counties against a subset of these companies could force them to pay for their share of the damages, and those funds could be used to help us more equitably adapt for the future of wildfires.

We can’t undo the scorching of entire towns and the loss of human lives, but pressing for accountability from both fossil fuel and utility companies for contributing to such devastation can at least start to resemble justice.

Categories: Climate

Here’s What to Know About Canada’s Wildfire Season

NYT Global Warming Climate Change - May 23, 2024 - 05:00
Despite a relatively wet spring, government officials are warning that persistent drought across Western Canada could leave the region vulnerable to major fires.
Categories: Climate

Can ‘rock weathering’ help tackle the climate crisis and boost farming?

The Guardian Climate Change - May 23, 2024 - 01:00

Trials show spreading basalt on farmland helps capture CO2 from the atmosphere and improves crop yields

There is an urgent need for farming to curb its greenhouse gas emissions, with farmers also under pressure to be more sustainable. One suggestion could help with both problems: spreading crushed volcanic (basalt) rocks on fields to help capture carbon dioxide from the atmosphere.

It is a sustainable fertiliser; basalt is rich in minerals, so the rock powder increases soil fertility by feeding nutrients needed for plant growth. Trials at the universities of Newcastle and Sheffield have shown that crop yields are improved, without any ill-effects on the environment or the plants.

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Categories: Climate

Half of world’s mangrove forests are at risk due to human behaviour – study

The Guardian Climate Change - May 23, 2024 - 00:00

The loss of the ecosystems, which are vast stores of carbon, would ‘be disastrous for nature and people across the globe’, says IUCN

Half of all the world’s mangrove forests are at risk of collapse, according to the first-ever expert assessment of these crucial ecosystems and carbon stores.

Human behaviour is the primary cause of their decline, according to the analysis by the International Union for Conservation of Nature (IUCN), with mangroves in southern India, Sri Lanka and the Maldives most at risk.

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Categories: Climate

Some Wind Turbines in Iowa Crumpled by Tornadoes

NYT Global Warming Climate Change - May 22, 2024 - 22:47
The damage was unusual, experts say, because turbines are built to withstand extreme weather. Iowa is a wind powerhouse, with thousands of turbines.
Categories: Climate

El calor en Miami alcanza temperaturas históricas. Y apenas es mayo

NYT Global Warming Climate Change - May 22, 2024 - 16:01
El índice de calor alcanzó los 44 grados Celsius el fin de semana, un nuevo récord para la ciudad. Los expertos se preocupan por el verano que se avecina.
Categories: Climate

Alaskan rivers turning orange due to climate change, study finds

The Guardian Climate Change - May 22, 2024 - 15:22

As frozen ground below the surface melts, exposed minerals such as iron are giving streams a rusty color that pose a risk to wildlife

Dozens of rivers and streams in Alaska are turning rusty orange, a likely consequence of thawing permafrost, a new study finds.

The Arctic is the fastest-warming region in the globe, and as the frozen ground below the surface melts, minerals once locked away in that soil are now seeping into waterways.

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Categories: Climate

Young Alaskans sue state over fossil fuel project they claim violates their rights

The Guardian Climate Change - May 22, 2024 - 14:02

Plaintiffs claim $38.7bn gas export project, which would triple state’s greenhouse gas emissions, infringes constitutional rights

Eight young people are suing the government of Alaska – the nation’s fastest-warming state – claiming a major new fossil fuel project violates their state constitutional rights.

The state-owned Alaska Gasline Development Corporation has proposed a $38.7bn gas export project that would roughly triple the state’s greenhouse gas emissions for decades, the lawsuit says. Scientists have long warned that fossil fuel extraction must be swiftly curbed to secure a livable future.

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Categories: Climate

Can Biden Win America’s Green Tech Trade War With China?

NYT Global Warming Climate Change - May 22, 2024 - 12:06
The Biden administration seems to be in denial about China’s staggering advantage.
Categories: Climate

Displaced by climate disasters, ageing Americans struggle to find housing

The Guardian Climate Change - May 22, 2024 - 11:00

Older adults face a shortage of affordable and accessible homes as climate change worsens

From their hillside home above Barre, Vermont, Doug and Rhoda Mason thought they were safe. It was 11 July 2023, and record rains were flooding their small city.

Then, just before 5am, a landslide crashed into the Masons’ house. The mud hit with such force it pushed the structure 10ft off its foundation.

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Categories: Climate

¿Realmente existe el plástico biodegradable?

NYT Global Warming Climate Change - May 22, 2024 - 10:01
Los plásticos biodegradables sí se desintegran, pero necesitan condiciones específicas. Mira esta guía para ubicar cuáles son las mejores alternativas si quieres contaminar menos.
Categories: Climate

Heat stress: how soaring temperatures are taking their toll on migrant workers in India’s garden city

The Guardian Climate Change - May 22, 2024 - 04:00

With heatwaves becoming more frequent in Bengaluru and other cities across the country, climate planning must look to people on the margins, experts say

Venkatachala starts his day early, neatly arranging jasmine, roses, chrysanthemums and crossandras on his pushcart. He then heads out on to the streets of Bengaluru, calling out to customers who use fresh flowers for religious rituals and daily prayers at home.

His goal this summer has been to sell most of his stock before 10am. Venkatachala knows that with each hour after that, his flowers will wilt, and the odds of selling them and the income he can expect will fall significantly.

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Categories: Climate

‘Never-ending’ UK rain made 10 times more likely by climate crisis, study says

The Guardian Climate Change - May 22, 2024 - 01:00

Winter downpours also made 20% wetter and will occur every three years without urgent carbon cuts, experts warn

The seemingly “never-ending” rain last autumn and winter in the UK and Ireland was made 10 times more likely and 20% wetter by human-caused global heating, a study has found.

More than a dozen storms battered the region in quick succession between October and March, which was the second-wettest such period in nearly two centuries of records. The downpour led to severe floods, at least 20 deaths, severe damage to homes and infrastructure, power blackouts, travel cancellations, and heavy losses of crops and livestock.

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Categories: Climate

Warming climate is turning rivers rusty with toxic metals

The Guardian Climate Change - May 22, 2024 - 01:00

Data from Colorado mountain rivers shows concentrations of copper, zinc and sulphate have doubled in 30 years

Mountain rivers in the US state of Colorado are going rusty and the warming climate is to blame, according to research. An increase in toxic heavy metals has also been observed in Arctic streams, leading to concern that this phenomenon may be more widespread.

From the Andes to the European Alps, researchers have seen an increase in heavy metals in mountain streams in recent decades, but it has not been clear what is driving the trend. Analysing 40 years of water chemistry data from 22 of Colorado’s mountain streams, researchers found that the concentrations of copper, zinc and sulphate had doubled over the past 30 years. The study, published in Water Resources Research, found that drier weather and reduced stream flow accounted for about half of the rise, but the remaining increase was most likely due to thawing of underground ice, exposing more rocks to groundwater and releasing the metals contained within them.

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Categories: Climate