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CNN — Air pollution spiked to unhealthy levels around the world in 2021, according to a new report. The report by IQAir, a company that tracks global air quality, found that average annual air pollution in every country — and 97% of cities — exceeded the World Health Organization’s air quality guidelines, which were designed […]
CNN — 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 Dam was built, a new report shows. In addition to water loss due to an intense multiyear drought, the US Geological Survey and the Bureau of Reclamation report found, Lake […]