Oklahoma University: Global Warming
Research proves global warming an issue worth learning about - 09/15/08
A lot of research is being done to explain the causes of this warming. An overwhelming majority of climate scientists agree that the major cause is increased levels of certain "greenhouse" gases, like carbon dioxide and methane, which is believed to be due to human activities.
Though human activities like industry and automotive emissions have contributed, this is not meant to place blame because researchers and climate experts know this information was not available when industry and cars were being developed.
While the jury is still out on all of the natural effects involved, the evidence is clear that humans are impacting climate.
Many climate scientists have proposed alternate theories for the warming of the planet that have not held up to scientific scrutiny, and our national experts have convened on numerous occasions to discuss these very theories. They have concluded that greenhouse gases are impacting our climate.
The International Panel on Climate Change, a group of scientists and national experts working on issues pertaining to climate science and climate change, has released four reports since 1990.
The most recent report states, "Most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic [greenhouse gas] concentrations."
