Future at Risk on a Hotter Planet By Lester R. Brown
The 25 warmest years on record have come since 1980. And the 10 warmest years since global recordkeeping began in 1880 have come since 1998.
The 25 warmest years on record have come since 1980. And the 10 warmest years since global recordkeeping began in 1880 have come since 1998.
The main greenhouse gases have reached their highest levels recorded since pre-industrial times, according to the World Meteorological Organization’s 2009 Greenhouse Gas Bulletin.