Geoscience Reference
In-Depth Information
multiple assessments by hundreds of natural and social scientists. There
are no grounds for objective parties simply to ignore the basic results, to
call them a hoax, or to argue that we need another half century before
we act.
Humans are putting the planet in peril. But humans can undo what
they are doing. Moreover, this can be achieved at relatively low cost if
people accept the realistic threat of global warming, put in place an eco-
nomic mechanism that penalizes carbon emissions, and take vigorous
efforts to develop low-carbon technologies. By taking these steps, we
can protect and preserve our precious planet.