"The federal government on Friday released a long-awaited report with an unmistakable message: The effects of climate change, including deadly wildfires, increasingly debilitating hurricanes and heat waves, are already battering the United States, and the danger of more such catastrophes is worsening.
The report’s authors, who represent numerous federal agencies, say they are more certain than ever that climate change poses a severe threat to Americans' health and pocketbooks, as well as to the country’s infrastructure and natural resources. And while it avoids policy recommendations, the report’s sense of urgency and alarm stands in stark contrast to the lack of any apparent plan from President Trump to tackle the problems, which, according to the government he runs, are increasingly dire...
Already, western mountain ranges are retaining much less snow throughout the year, threatening water supplies below them. Coral reefs in the Caribbean, Hawaii, Florida and the United States' Pacific territories are experiencing severe bleaching events. Wildfires are devouring ever-larger areas during longer fire seasons. And the country’s sole Arctic state, Alaska, is seeing a staggering rate of warming that has upended its ecosystems, from once ice-clogged coastlines to increasingly thawing permafrost tundras.
The authors argue that global warming “is transforming where and how we live and presents growing challenges to human health and quality of life, the economy, and the natural systems that support us.” And they conclude that humans must act aggressively to adapt to current impacts and mitigate future catastrophes “to avoid substantial damages to the U.S. economy, environment, and human health and well-being over the coming decades.”
“The impacts we’ve seen the last 15 years have continued to get stronger, and that will only continue,” said Gary Yohe, a professor of economics and environmental studies at Wesleyan University who served on a National Academy of Sciences panel that reviewed the report. “We have wasted 15 years of response time. If we waste another five years of response time, the story gets worse. The longer you wait, the faster you have to respond and the more expensive it will be.”
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