1) yes, i think that people try to preserve national resources. Governments are waking up about green issues, different organizations start their projects for saving our planet, f.e. WWF!
2) I think that pollution is a very dangerous and serious problem. Acid rains, global warming, air and water pollution are the problems that threaten human life on earth!
3) Now we have the time and the money and even technology to make our planet a better, cleaner and safer place. We can use ecological cars, filters, recycle garbage.
4) yes, I agree with this statement. Most people understand this global problems and they try to recycle garbage and for example use filters and bicycles)