Capturing CO2 to recycle it, brightening clouds to better intercept sunlight, massive reforestation: here's an overview of scientific solutions to combat global warming that offer a glimmer of hope.
2016
1982
2004
1994
1991
2013
1976
1966
1985
1999
1972
2023
1980
1997
2002
1986
2024
2006
2018