Four Republicans Propose a Fee on U. S. Carbon Sources

Summary .   Four former Administrators of the U. S. Environmental Protection Agency, all of whom served under Republican presidents, are urg...

Earth’s average surface temperature

Global Warming is the rise of Earth’s average surface temperature due to result of greenhouse gases, such as carbon dioxide emissions from b...

President Obama: Combating Global Warming vs. All of the Above Energy

Summary .   The United States has never passed a law enshrining a national policy to combat global warming.   In the absence of Congressi...

CO2 and Temperature Changes Are Correlated for 800,000 Years

Summary .   Global warming and cooling cycles over geological time scales are correlated with increasing and decreasing concentrations of at...