Discovery: Big ideas like space mirrors and creating more clouds won't help with global warming, but cutting emissions will, argues a new study.
"Climate engineering doesn't offer a perfect option," said Daniela Cusack, an assistant professor of geography at UCLA and the study's lead author, in a release. "The perfect option is reducing emissions."
We have the technology we need right now, say the authors, to reduce the amount of CO2 being added to the atmosphere each year by 7 gigatons. Human activity...