It’s not easy flying green
A new analysis emphasizes the large variability in greenhouse gas emissions from alternative fuels.
The 6-percent solution
How corporations can reduce greenhouse-gas emissions through better planning.
Financial impacts of ‘cap and trade’
Analysis shows that, contrary to some claims, proposed legislation to limit carbon emissions would not disadvantage those with lower incomes.
Methane gas likely spewing into the oceans through vents in sea floor
Could speed up global warming more efficiently than carbon dioxide