http://www.greenhousenet.org/ There will be posts here from Greenhouse Network that need to be promoted.

Global warming
The time to stop global warming is now. The health of our planet lies in the balance. See what's at stake and how we are putting our leaders in the hot seat.
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Oceans
Dive into the sea to see why the seas are in peril and how we can work together to save them.
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Forests
What lies between the forest and the trees? See for yourself what dangers lie ahead and how we're working to save forests both near and far.
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Nuclear energy
Dangerous. High-risk. Meltdown. Catastrophe... See why these words accurately describe nuclear energy and join us as we push for No New Nukes.
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Toxics
The hazards of toxics are all around us. But, for every toxic substance, there is a safer alternative. See how we are leading the way to a toxic-free future.
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Genetic engineering
Few things are more important to your life than what you eat. Join us in saying "No" to genetic engineering.
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Lots of global warming sites will suggest that you drive less, ride your bike, or recycle. These are good things to do, but the reality is that global warming will be stopped, not by changing light bulbs, but by changing US government policy at the state and federal level.

So—here are the four best things you can do with your dollars and hours!

1.  Commit to working 40 hours over the next year for a clean energy candidate in your state!  http://www.fscvl.org/

2.  Invite your US Senator to come talk about global warming with your community group, school, or faith group.  Read the how to guide here.

3. Work in your state for renewable energy or clean car legislation. http://www.ucsusa.org/clean_energy/energynet/index.cfm?pageID=1107

4. Get the car companies off of California’s back! http://www.ucsusa.org/general/special_features/page.cfm?pageID=1534