Here are some facts: 1.) Average global temperature increased by 1 degree celsius during the 20th century. 2.) The United States contains 5 percent of the world’s population, and contributes 22 percent of the world’s carbon emissions. 3.) Climatologists are 95% certain that global warming is largely due to human activities such as the release of greenhouse gases. 4.) Less than one tenth of one percent of climate scientists doubt that humans are contributing to climate change. 5.) 2014 will likely the hottest year in recorded history.
The world needs the United States, as the most powerful economic, military, and diplomatic force on earth, to take charge and take real steps to reversing climate change.



