Nature World: Though on track to meet its state-mandated targets for reducing its greenhouse gas emissions by 2020, major changes are needed if the Golden State hopes to meet its 2050 goals, a new study warns.
In 2005, an executive order charged California with reducing its emissions of gases such as carbon dioxide, methane and nitrous oxide to 80 percent below 1990 levels by the middle of the century.
"This is quite a stringent requirement, and even if we aggressively expand our policies and implement fledgling...