Now heating of the earth is much rapid and lead ti catastrophic changes. much of warming has been occurring since industrial revolution. volumes of methane under the froZen tundras of northern latitudes is discovered. as global temperatures increases the ice in tundra melts more.the methane trapped in the ice escapes inti the atmosphere increasing global temperatures. in turn this causes even more ice to melt , and releasing more methane and so on...the main cause is green house gases like carbon dioxide, methane. are releasing into atmosphere
Simple in one line we can say that we are the cause of global is we who are trapping ouselves