BRUSSELS, Belgium — As the world gets hotter by degrees, millions of poor people will suffer from hunger, thirst, floods and disease unless drastic action is taken, scientists and diplomats warned ...

What would be the price tag for shielding the Earth from global warming using a chemical cloud? It might be just $1 billion to $3 billion, making a sun-reflecting project much cheaper than combating ...

Choosing Google’s Mountain View, Calif. campus as the venue for another big federal cleantech announcement, Department of Energy Secretary Steven Chu launched a $151 million round of government grants ...

Fossils are puzzles from the past. They also give us clues to the future. “We have to go back to the geologic past and study ancient climate warming events and see how organizations responded to those ...

As global temperatures rise and demand for air conditioning and refrigeration soars, all countries must adopt common-sense initiatives to make cooling more efficient, less emissions-intensive, and ...