Energy Secretary Rick Perry has also said that human activity is not the main driver of climate change. (vox.com)
With city populations expected to rise to 70 % by 2050, they are and will continue to be the main drivers of climate change, as well as extremely vulnerable to climate change impacts. (climatebonds.net)
As the main driver of climate change, the connection between burning fossil fuels and global warming is clear. (scientificamerican.com)