『Extreme Heat Wave Grips Nearly Half of US, Highlighting Climate Crisis and Policy Challenges』のカバーアート

Extreme Heat Wave Grips Nearly Half of US, Highlighting Climate Crisis and Policy Challenges

Extreme Heat Wave Grips Nearly Half of US, Highlighting Climate Crisis and Policy Challenges

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 Almost half of the United States is currently experiencing a dangerous and early-season heat wave, with communities across the central and eastern regions facing temperatures well above average for this time of year. According to Climate Central, the heat wave, unfolding from late June and forecast to persist into early July, is affecting approximately 174 million people, making it one of the most widespread extreme heat events in recent memory. Analysis shows that human-caused climate change has made this extreme heat at least three times more likely compared to previous decades. Cities including New York City, Chicago, Philadelphia, Indianapolis, Charlotte, Washington DC, Louisville, Detroit, Milwaukee, Cincinnati, Pittsburgh, Richmond, and Waterloo are all under advisories for multiple days of major to extreme heat risk. In some areas, particularly Nebraska, South Dakota, and Minnesota, daytime highs have soared 20 to 25 degrees Fahrenheit above the 30-year average. The Midwest, Great Lakes, Ohio Valley, and much of the East Coast are recording daytime highs exceeding 95 to 100 degrees Fahrenheit, with humidity making heat index values surpass 105 degrees. Overnight temperatures are also unusually high, remaining 15 to 20 degrees above normal, which increases the danger because people cannot cool down, and this is setting records for warmest overnight lows in several regions. The National Weather Service attributes the intense heat to a massive high-pressure system that has shifted from the Southwest to dominate the eastern half of the country, creating a large heat dome.

Meanwhile, there are significant policy developments affecting the US climate response. According to Politico, the recent absence of US officials at midyear international climate talks has been met with regret and concern by many countries, as global leaders grapple with the vacuum left by Washington’s subdued participation. This lack of engagement comes amid moves by the current administration to roll back key environmental protections. ABC News reports that environmental advocates are alarmed at the administration’s plan to repeal protections for 58 million acres of national forests, warning that opening these lands to development could have major ecological repercussions. At the same time, public support for renewable energy appears to be waning according to a new poll, with interest in solar, wind, and green energy tax credits declining, especially among Democrats and independents.

On the broader global front, new scientific research highlighted by ScienceDaily warns that the world may be less than four years away from exceeding the remaining carbon budget to limit warming to 1.5 degrees Celsius, underscoring the urgency for dramatic emissions reductions worldwide. Researchers are also sounding the alarm about ocean color changes linked to warming, which could signal more profound and far-reaching shifts in Earth’s climate systems. These developments highlight the interconnectedness of climate events, policy choices, and scientific findings in the rapidly evolving landscape of climate change.

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