The latest climate change survey from Yale and George Mason Universities is out, and it shows that Americans are still poorly-informed about the causes of global warming. Only 54% understand that it’s mostly human-caused, while 33% incorrectly believe global warming is due mainly to natural factors.
In fact, a new study published in Nature Scientific Reports developed a real-time global warming index. It shows that humans are responsible for 1°C global surface warming over the past 150 years – approximately 100% of the warming we’ve observed. Lead author Karsten Haustein explained their new index and study in a blog post.
Americans are nevertheless growing increasingly concerned about climate change. A record 22% are very worried about it (double the number in the March 2015 survey), and 63% of Americans are at least somewhat worried about climate change. That’s probably because they perceive direct climate impacts – 64% of survey participants think that global warming is affecting the weather, and 33% said it’s having a big influence.