Enlarge / Protest sign from a rally against the Kinder Morgan oil pipeline on Burnaby Mountain, BC. (credit: flickr user: Mark Klotz) In 2018, Gallup’s annual environment survey found that overall concern about climate change in the US was roughly stable. But within that stability was a growing divide. The 87 percent of Democrats who reported in 2017 that they believe global warming is a result of human activity bumped up slightly to 89 percent in 2018.