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Counties projected to have the most extreme precipitation days in 2050
By Gina-Marie Cheeseman of Stacker |
Counties projected to have the most extreme precipitation days in 2050
Climate change will not just affect temperature, it will also affect how much precipitation towns, counties, states, and countries receive. Wet regions are projected by the National Climate Assessment to generally become wetter, with rising overall air and water temperatures increasing heavy downpours across the U.S., according to the Fourth National Climate Assessment. Studies widely show that across the country, heavy precipitation events are increasing and projected to continue doing so.
Over the last century, there has been a 10% increase in annual precipitation in Pennsylvania, for example, with experts predicting a continued increase in precipitation and flooding through mid-century. By 2050, precipitation in Pennsylvania is expected to increase by 8% annually, with 14% of that occurring in
A large number of studies have documented the fact that acute air pollution exposure harms human health, even in places where ambient pollution levels are generally low (e.g. Ward 2015, Knittel et al. 2016, Schlenker and Walker 2016, Deryugina et al. 2019). Growing understanding of such harms suggests that further reducing air pollution would substantially improve human health and well-being.
The traditional regulatory approach to improving air quality targets regions with high levels of air pollution. For example, the US Clean Air Act requires “non-attainment” areas that fail to meet minimum air quality standards to take action to reduce pollution, and to achieve “attainment” status as soon as possible. Little is known about the distributional characteristics of the environmental benefits and environmental costs from such an approach, as the work of Hsiang et al. (2018) underscores. Moreover, our understanding of the economics of such policies is changing. For example, re