These were the best and worst places for air quality in 2021, new report shows
Air pollution spiked to unhealthy levels around the world in 2021, according to a new report.
Air pollution spiked to unhealthy levels around the world in 2021, according to a new report.
Lake Powell, the second-largest human-made reservoir in the US, has lost nearly 7% of its potential storage capacity since 1963, when Glen Canyon
As the US attempts to wean itself off its heavy reliance on fossil fuels and shift to cleaner energy sources, many experts are
Anderson Cooper explains how you can easily donate to any of the 2021 Top 10 CNN Heroes.