the way of prevent the global warming.

1.We can't emphasize the importance of plant trees too much
2.There is no denying that we should reduce the quantity of CO2.
3.Decline the use of coal and gasoline.
4.Promote the effective of enegy.
就能想起这些.还有发展核能,减少汽车尾气排放量,乘公车少开私家车等等不会用英语说.希望对你有启发.