Greenpeace - :

“As the planet heats up, polar bears have found themselves in hot water. That”s because the sea ice the bears depend on to hunt is melting, and the polar bear is now threatened with extinction. Polar bears have survived for centuries in one the harshest climates on Earth, but they may not survive to the end of this century if current global warming trends continue.”

Please help! - you can raise awareness of this specific issue, and all sorts of other things that are generally environmental ..

e.g. a few tips -
In the bathroom:

• install water saving devices for your taps and showers. energy saving shower heads can save up to 20 percent of hot water usage - and cut your electricity bills. A faucet aerator will reduce the flow without reducing the water pressure.
• don”t leave the tap running while brushing your teeth or shaving.
• a shower (about 10 minutes) uses 2/3 the amount of water as a bath - and have shorter showers!

we can also try to minimize the amount of water we waste around the house. for example, instead of chucking a lukewarm glass of water down the sink - collect it and at the end of the day you can use it to water your garden/outdoor plants etc.

you can also read about other campaigns sonia supports ..