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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
global warming
Global Warming is a hot topic for a good reason. I recently attended Power Shift 2007, the largest youth global warming summit ever in DC, and it was eye-opening. The lectures and seminars were fascinating, and scary. We have got to take care of the earth. Admittedly, I should be better about it, but I do try-to shut the shower water off when I'm not using it, to take public transportation, etc. And while I agree that large-scale change needs to come from the government (and soon), while they keep on ignoring it, cities and local communities can do their part. There are a few great websites--www.no-burn.org, which is all about attempting to reduce waste, especially organic waste, for less global warming. Their video, "The Story of Stuff," which should be up on the website soon, is fantastic, explainging the process of how those water bottles and organic food waste lead to global warming (use nalgenes! :-)). Another great one is http://coolcities.us/, which lists the US cities that have committed to the Cool Cities Climate Challenge, involving all sorts of things we do locally, since the government hasn't decided to step up. (Philly is a Cool City-http://coolcities.us/cityProfiles.php?city=153&state=PA). There are more websites about what schools can do and what we can do individually.
Sorry, I got off on a bit of a tangent from Biology. But Global Warming is important! And interesting. And it seems like everyone wants to do something, so I think those are interesting places to start.