1. Some of the environmental problems that are affecting countries these days:
Air pollution, Deforestation, Global Warming,...
2. No, i don't because they have to say it, share the information to the citizens and have some rules about environment. Governments can do it alone, they need the citizens save environment together.
3. Some people do not consider environmental problems to be serious because they are thinking that they already have the government and environmentalist, so these authorities will solve their environmental problems.
Chúc em học tốt !