For this week’s Sunday Poser, Sadje wants to know…
Do you believe that humans have brought about climate change or is it just false news/hoax?
Anyone who denies that humans have contributed to climate change is guilty of willful ignorance. To think that climate change isn’t real or is a hoax requires the dismissal of facts and the denial of science.
There is overwhelming scientific evidence that rising temperatures are pervasive and striking. Thermometer records kept over the past century and a half show Earth’s average temperature has risen more than 1 degree Fahrenheit (0.9 degrees Celsius), and about twice that in parts of the Arctic. The average temperature of the Earth is rising at nearly twice the rate it was 50 years ago.
But climate change encompasses not only rising average temperatures, it also manifests itself in extreme weather events, shifting wildlife populations and habitats, rising seas, and a range of other negative impacts.
All of these changes are emerging as humans continue to add heat-trapping greenhouse gases into the atmosphere. And nothing, other than the rapid rise of greenhouse gas emissions from human activity, can fully explain the dramatic and relatively recent rise in global average temperatures and the increasing association between climate change and more frequent storms, floods, and wildfires,
Global warming and climate change have been the subject of a great deal of political controversy, especially in the U.S. But as the science becomes clearer and consensus grows impossible to ignore, debate should be moving away from whether humans are causing climate change and toward questions about how best to respond.