Science knows that ocean warming is occurring. A big challenge now is to work out how quickly the temperature is rising.
Humans cannot expect a safer, cooler world from technological fixes.
The most limited rise in global temperatures—never mind higher ones—is going to exact a price.
New ways of digging the dirt could lead to a major advance, and farmers in the developing world are making a difference.
Imagine a world with so much renewable, clean energy that it could provide all the electricity society needed, reliably and without any interruption, round the clock. That could soon be a reality.
The costs of not acting against climate change are high. The benefits of investing in a clean-energy economy would be widespread.
Gov. Jerry Brown, who has positioned the state as a global leader in renewable energy efforts, signs legislation setting 2045 as the target year for ending the use of fossil fuels.
Hazards multiply when the two weather phenomena combine, and by the close of the century, scientists say, a two-fisted assault could be underway.
The Bureau of Land Management mistakenly posts online details on about 900 ancient cliff dwellings, spiritual structures, rock art panels and other antiquities in Utah.