In an extensive report released today at the White House, the US Global Change Research Program (USGCRP) gave its clear vision of the dangers of global warming, stating, Climate change, once considered an issue for a distant future, has moved firmly into the present. Reiterating points made by the UN earlier this year, the report shows that the effects of increasing temperatures can already be felt across globe, and further impacts are now unavoidable. However, Americans still have a choice in whether or not to mitigate these changes or see them worsen irreversibly by the end of the century. The warming trend is primarily the result of human activity The third of its kind, the report was instituted by the Global Change Research Act of 1990. As the report reads, Continued warming and an increased understanding of the U.S. temperature record, as well as multiple other sources of evidence, have strengthened our confidence in the conclusions that the warming trend is clear and primarily the result of human activities.