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7 ways climate change is already affecting Texans


For decades, scientists warned that human-induced climate change could put communities in danger around the world. More intense climate and weather events beyond natural climate variability have already damaged people and nature. Those threats are becoming increasingly evident in Texas, . The ongoing , which brought unseasonably high temperatures and once again about the capacity of the state’s power grid, is just one example. Here’s how climate change is already affecting Texans. Sundown isn’t providing as much relief, according to a . The average daily minimum and maximum temperatures in the state both rose by 2.2 degrees Fahrenheit from 1895 to 2020, according to the report. The biggest changes in average temperatures were reported in urban areas, where buildings and roads but every Texas county saw an increase. Even minor shifts in average temperatures require more electricity from the power grid, endanger the health of people who work outdoors, and can Heat also of ground-level ozone pollution, or smog, making it harder for people with asthma and other health concerns to breathe outdoors in major Texas cities. This year, cities across Texas have seen amid a prolonged spring heat wave that officials warned could lead to heat exhaustion and illness. Warming oceans fuel hurricanes, increasing the amount of precipitation, strengthening winds and resulting in more flooding on land, . Climate change increased the intensity of Hurricane Harvey in 2017, . Harvey could not have produced so much rain without human-induced climate change, . Harvey, the costliest U.S. disaster that year, , and more than 100 people died from direct causes such as flooding and indirect causes such as disruption to medical services, according to a . to storm surge during hurricanes, the . Already, scientists have observed in areas like Texas’ Port Isabel. Between 2000 and 2019, rising sea levels caused the Texas coastline to retreat, on average, about 1.25 meters, or about 4 feet, per year, according to a . A 2021 by the state’s climatologist found that a 1-meter relative sea level rise produces a doubling of storm surge risk. “The places along the Texas coast with the largest rates of sea level rise may have a doubled storm surge risk by 2050 relative to the beginning of the 20th century, purely due to relative sea level rise itself,” the report said. Winters are generally becoming milder, but that global warming could play a role in arctic changes that cause southerly cold snaps like the one that devastated Texas in February 2021. The 2021 freeze caused as many as 700 deaths, , and up to $129 billion in economic damage, , an economic firm. The state will need to upgrade its infrastructure, including the power grid, to withstand extreme weather while cutting back on carbon emissions to help slow climate change, . Global warming enhances droughts by , which can serve as a water source and retain moisture in the ground. In Texas, some experts fear a and less rainfall this spring could put parts of the state in a drought similar to the one Texas saw in 2011, the driest year recorded in the state. In West Texas’ Big Bend National Park, the Rio Grande has stopped flowing in recent months, and experts there worry the river could dry up more frequently, . In the second half of this century, Texas could see “megadroughts” worse than any previously recorded, . The projections are of particular concern for communities like Dallas, which relies entirely on surface water – which is more vulnerable to evaporation – and farmers and ranchers, who rely on rainfall for crops and livestock. Severe droughts needed to raise cattle for beef, for example. Droughts, along with disruptions from natural disasters, could . Warmer waters with reduced flow are , such as a , posing risks for recreational use and consumption. Texas’ warming temperatures are also more inviting to insects that carry and transmit diseases historically seen in the tropics. That’s what , when hundreds of Texans in the Dallas area were diagnosed with the mosquito-transmitted West Nile virus after a warm winter. Dengue fever and the , also transmitted by mosquitoes, are expected to become more common in warming climates. As communities around the globe increasingly feel the impacts of climate change, more people could head to Texas. Last year, how states along the U.S.-Mexico border have become destinations for thousands of people fleeing Central America because of climate change, food insecurity and poverty. And with sea levels rising along the U.S. coast, about 1.5 million Americans could relocate to Texas by 2100, according to a . The Austin-Round Rock area would be the top destination, according to the study, but the Houston and Dallas areas could also see a large influx of climate migrants.

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