Are all green cars created equal? It’s a complicated question, but Climate Central found the answer.
Nuclear power emits much lower greenhouse gas emissions than electricity from coal but there is risk of a reactor accident, unresolved issues with radioactive waste disposal, and weapons.
No scientist disputes that carbon dioxide is a greenhouse gas and that it is increasing in the atmosphere. And careful detective work shows that the increase has chemical fingerprints — from us.
Coal generates carbon dioxide when combusted, which is causing the world to warm. In Georgia, a state that gets over 60 percent of its electricity from coal, some coastal residents are connecting the dots between coal and changes in the local ecology and economy attributed to global warming.
Congress helped bolster the corn ethanol business in Iowa by mandating the Renewable Fuel Standard in 2005. But scientists are concerned about the unexpected consequences of putting more of Iowa's land into corn production.