We do have a lot of good energy-efficiency standards already in place for everything from refrigerators to air conditioners. It would be really great to have more federal grants to researchers who come up with cool new technology. Farmers in Canada will be very happy. I don't think we'll see pineapples in Saskatchewan, but the climate in North America is expected to get warmer and drier. The people who will be really hurting are the ones in warm tropical areas like Bangladesh and the Philippines.
Systems have a way of balancing themselves out, particularly climate systems, which are way complex.
All the evidence says no. We're seeing glaciers retreating, but that most of the scientists do think that the warming we've seen in the last century is not just a natural oscillation but includes some human-caused change. All the predictions are that we're going to see more seal level rise and that it's going to cause a lot of problems for coastal areas. Even if the sea just rises and inch or two that means you get a lot more flooding when there's a storm. They'll be less able to adapt and, in a lot of cases, their habitat has been broken up and it would be hard for them to migrate to a new place.