LiveScience: Global warming is expected to have far-reaching, long-lasting and, in many cases, devastating consequences for planet Earth.
For some years, global warming -- the gradual heating of Earth's surface, oceans and atmosphere -- was a topic of heated debate in the scientific community.
But the overwhelming consensus of researchers today is that global warming is real and is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse...