On Thursday, the "Scientific Assessment of the Effects of Global Change on the United States" report was released by the Bush administration. Four years of research were needed to put all the information together; however, it was thanks to a court order that the report eventually came out. 

One of the conclusions of the report says that greenhouse gases resulting from fossil fuel combustion "are very likely the single largest cause" of the global warming effect that is starting to become more and more obvious.

In the 271-page report, it was also said that in the past 50 years, the number of heat waves has constantly grown, the sea-level has risen with each passing year and the number of Atlantic hurricanes has been going up as well.

Last month, president Bush gave the year 2025 as deadline for halting the growth of greenhouse-gas emissions. According to Mr.Bush, new technologies are "the key" for resolving the soon-to-be delicate issue of climate change. One of the more specific aspects the president went into was this: power plant emissions should peak within the next 10 to 15 years and then decline.

As found in the latest annual report from the U.S. Environmental Protection Agency, released on April 17, U.S. greenhouse gas emissions decreased by 1.1 percent during 2006 when compared to the previous year. This decrease became possible because Americans burned less fossil fuels and also they used less electricity than in 2005. The report is part of a bigger set of reports submitted by the United States to the Secretariat of the United Nations Framework Convention on Climate Change which is responsible for organizing  intergovernmental efforts in order to deal with climate change.