Record-breaking summer temperatures are once again expected across the southern United States, as a heat dome continues to subject millions of Americans to scorching conditions.
A heat dome is defined as a"persistent region of high pressure that traps heat over an area," William Gallus, professor of atmospheric science Iowa State University,They are often influenced by swings in the jet stream pattern — the band of mostly westerly winds that circles the globe— which can slow the movement of weather systems, resulting in heat dome events that can linger for multiple days.
Hundreds of people in Texas have also visited emergency rooms since the start of the current heat wave to be treated for heat-related illnesses,In the 2021 heat dome that descended on the Pacific Northwest, an area not accustomed to extreme heat,Due to the tilt of the Earth, heat waves have always been a feature of summertime in the northern hemisphere. But as global temperatures have warmed, on average, by 1.
"Climate change is amplifying this and other heat events, as global average temperatures are already about two degrees F higher than in preindustrial times,"."With the planet still warming as humans continue to burn fossil fuels that release heat-trapping greenhouse gases, heat waves will continue to happen more often, last longer and reach higher temperatures. In part because of more extreme heat waves, an unusually hot summer in the past is now considered average.
, a consortium of scientists and journalists, found that the current heat dome locked in place over Mexico and the Southern United States was five times more likely to have occurred thanks to climate change.
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