Question

why is global warming a cause of concern for the environmentalists?

Answer 1

Global warming is a cause of concern for the environmentalists because global warming will result in extreme temperature conditions. There will be changes in the precipitation patterns that may lead to floods and droughts. The water trapped in the ice caps of the Polar Regions will start melting at a rapid rate, which will cause the sea levels to rise. Even a marginal increase in the temperature of the Earth (i.e., +0.5°C) may lead to serious disasters.