Current:Home > My2017’s Extreme Heat, Flooding Carried Clear Fingerprints of Climate Change -MoneySpot
2017’s Extreme Heat, Flooding Carried Clear Fingerprints of Climate Change
View
Date:2025-04-25 10:24:19
Many of the world’s most extreme weather events witnessed in 2017, from Europe’s “Lucifer” heat wave to Hurricane Harvey’s record-breaking rainfall, were made much more likely by the influence of the global warming caused by human activities, meteorologists reported on Monday.
In a series of studies published in the American Meteorological Society’s annual review of climate attribution science, the scientists found that some of the year’s heat waves, flooding and other extremes that occurred only rarely in the past are now two or three times more likely than in a world without warming.
Without the underlying trends of global climate change, some notable recent disasters would have been virtually impossible, they said. Now, some of these extremes can be expected to hit every few years.
For example, heat waves like the one known as “Lucifer” that wracked Europe with dangerous record temperatures, are now three times more likely than they were in 1950, and in any given year there’s now a one-in-10 chance of an event like that.
In China, where record-breaking heat also struck in 2017, that kind of episode can be expected once every five years thanks to climate change.
Civilization Out of Sync with Changing Climate
This was the seventh annual compilation of this kind of research by the American Meteorological Society, published in the group’s peer-reviewed Bulletin. Its editors said this year’s collection displays their increased confidence in the attribution of individual weather extremes to human causes—namely the buildup of greenhouse gases in the atmosphere.
“A warming Earth is continuing to send us new and more extreme weather events every year,” said Jeff Rosenfeld, the Bulletin’s editor-in -chief. “Our civilization is increasingly out of sync with our changing climate.”
Martin Hoerling, a NOAA researcher who edited this year’s collection, said the arrival of these damages has been forecast for nearly 30 years, since the first IPCC report predicted that “radical departures from 20th century weather and climate would be happening now.”
Not every weather extreme carries the same global warming fingerprint. For example, the drought in the U.S. High Plains in 2017, which did extensive damage to farming and affected regional water supplies, chiefly reflected low rainfall that was within the norms of natural variability—not clearly a result of warming.
Even so, the dry weather in those months was magnified by evaporation and transpiration due to warmer temperatures, so the drought’s overall intensity was amplified by the warming climate.
Warnings Can Help Guide Government Planners
Even when there’s little doubt that climate change is contributing to weather extremes, the nuances are worth heeding, because what’s most important about studies like these may be the lessons they hold for government planners as they prepare for worse to come.
That was the point of an essay that examined the near-failure of the Oroville Dam in Northern California and the calamitous flooding around Houston when Harvey stalled and dumped more than 4 feet of rain.
Those storms “exposed dangerous weaknesses” in water management and land-use practices, said the authors, most from government agencies.
What hit Oroville was not a single big rain storm but an unusual pattern of several storms, adding up to “record-breaking cumulative precipitation totals that were hard to manage and threatened infrastructure throughout northern California,” the authors said.
Thus the near-disaster, as is often the case, wasn’t purely the result of extreme weather, but also of engineering compromises and such risk factors as people building homes below the dam.
In Houston, where homes had been built inside a normally dry reservoir, “although the extraordinary precipitation amounts surely drove the disaster, impacts were magnified by land-use decisions decades in the making, decisions that placed people, homes and infrastructures in harm’s way,” the authors said.
Attribution studies should not just place the blame on pollution-driven climate change for increasingly likely weather extremes, the authors said. They should help society “better navigate such unprecedented extremes.”
veryGood! (69184)
Related
- Newly elected West Virginia lawmaker arrested and accused of making terroristic threats
- 'Vanderpump Rules' star Raquel Leviss says she has a 'love addiction.' Is it a real thing?
- Tornado spotted in Rhode Island as thunderstorms move through New England
- Chinese military launches drills around Taiwan as ‘warning’ after top island official stopped in US
- Taylor Swift Eras Archive site launches on singer's 35th birthday. What is it?
- What Jessica Simpson and Nick Lachey's Marriage Was Like on Newlyweds—and in Real Life
- Don't pay federal student loans? As pause lifts, experts warn against boycotting payments
- Middle-aged US adults binge drinking, using marijuana at record levels, new study finds
- Man can't find second winning lottery ticket, sues over $394 million jackpot, lawsuit says
- Drone shot down over central Moscow, no injuries reported
Ranking
- Louvre will undergo expansion and restoration project, Macron says
- Pink shows love for Britney Spears with 'sweet' lyric change amid divorce from Sam Asghari
- DonorsChoose sees banner donation year with help from Gates Foundation and millions of small gifts
- New York governor blocks discharge of radioactive water into Hudson River from closed nuclear plant
- Rylee Arnold Shares a Long
- The U.S. imports most of its solar panels. A new ruling may make that more expensive
- Jeremy Allen White Has a Shameless Reaction to Alexa Demie's Lingerie Photo Shoot
- Stock market today: Asian shares mostly decline after Wall Street drops on higher bond yields
Recommendation
US wholesale inflation accelerated in November in sign that some price pressures remain elevated
Appeals court strikes down Utah oil railroad approval, siding with environmentalists
Thousands flee raging wildfire, turning capital of Canada’s Northwest Territories into ghost town
Former soldier sentenced to life in prison for killing Alabama police officer
Behind on your annual reading goal? Books under 200 pages to read before 2024 ends
Tyler Perry, Byron Allen, Sean 'Diddy' Combs lose out on bid for BET networks sale
Dealer gets 10 years in prison in death of actor Michael K. Williams
TikToker Caleb Coffee Hospitalized With Spinal Injury and Broken Neck After Falling Off Cliff in Hawaii