8.6 C
New York
Friday, June 25, 2021
Home Technology Increased warming closing in on Paris climate agreement temperature limit, UN report...

Increased warming closing in on Paris climate agreement temperature limit, UN report finds


The world is getting closer to passing a temperature limit set by global leaders five years ago and may exceed it in the next decade or so, according to a new United Nations report.

In the next five years, the world has nearly a one-in-four chance of experiencing a year that’s hot enough to put the global temperature at 1.5 Celsius above pre-industrial times, according to a new science update released Wednesday by the UN, World Meteorological Organization (WMO) and other global science groups.

That 1.5 C is the more stringent of two limits set in 2015 by world leaders in the Paris climate change agreement. A 2018 UN science report said a world hotter than that still survives, but chances of dangerous problems increase tremendously.

The latest report comes on the heels of a weekend of weather gone wild around the United States: scorching heat, record California wildfires and two more Atlantic storms that set records for earliest 16th and 17th named storms.

Earlier this year, Death Valley hit 54.4 C, and Siberia hit 38 C.

The warming that has already occurred has “increased the odds of extreme events that are unprecedented in our historical experience,” Stanford University climate scientist Noah Diffenbaugh said.

Floodwater surrounds a farm near Craig, Mo. Midwest states battled some of the worst flooding they have experienced in decades as rain and snowmelt from a ‘bomb cyclone’ inundated rivers and streams in March 2019. (Scott Olson/Getty Images)

For example, historical global warming has increased the odds of record-setting hot extremes at more than 80 per cent of the globe and has “doubled or even tripled the odds over the region of California and the western U.S. that has experienced record-setting heat in recent weeks,” Diffenbaugh added.

The world already has warmed nearly 1.1 C since the late 1800s, and the last five years are hotter than the previous five years, the report said. The speed-up could be temporary, or it might not be. There’s both man-made warming and natural warming from a strong El Nino weather pattern in the past five years, said WMO Secretary General Petteri Taalas.

“The probability of 1.5 degrees is growing year by year,” Taalas told The Associated Press. “It’s very likely to happen in the next decade if we don’t change our behaviour.”

‘Record heat, ice loss, wildfires, floods and droughts’

That’s potentially faster than what a 2018 UN report found: that the world was likely to hit 1.5 C sometime between 2030 and 2052.

Breakthrough Institute climate scientist Zeke Hausfather, who wasn’t part of the new report, said the document was a good update of what scientists already know. It is “abundantly clear that rapid climate change is continuing, and the world is far from on track” toward meeting the Paris climate goals, he said.

A man walks over the parched bed of a reservoir on the outskirts of Chennai, India. (Arun Sankar/AFP/Getty Images)

Some countries, including the U.S. and many in Europe, are reducing emissions of heat-trapping carbon dioxide, but Taalas said the world is on a path that will be 3 C warmer compared with the late 19th century. That would be above the Paris accord’s less stringent 2 C target.

The latest report was the UN’s annual update on “climate disruption” caused by the burning of coal, oil and gas. It highlighted more than just increasing temperatures and rising sea levels.

“Record heat, ice loss, wildfires, floods and droughts continue to worsen, affecting communities, nations and economies around the world,” UN Secretary General Antonio Guterres wrote in a foreword.

The report spotlights unprecedented wildfires in the Amazon, the Arctic and Australia. California is fighting record wildfires as the report was issued.

“Drought and heat waves substantially increased the risk of wildfires,” the report said. “The three largest economic losses on record from wildfires have all occurred in the last four years.”

A visitor looks out at the Rhone glacier, including a portion of the glacier that is covered in UV-resistant material to slow the glacier’s melting, near Obergoms, Switzerland. The Rhone glacier has lost approximately 1,300 metres in length since the 1850s. (Sean Gallup/Getty Images)

Carbon dioxide emissions will be down four to seven per cent this year because of reduced travel and industrial activities during the coronavirus pandemic, but the heat-trapping gas stays in the air for a century so the levels in the atmosphere continue to go up, Taalas said. And, he said, so will the warming.

So far, this year is the second hottest on record and has a 37 per cent chance of surpassing the global record set in 2016, according to the U.S. National Oceanic and Atmospheric Administration.



Source link

Today news
Today News 1 runs four of the western GTA’s most influential media websites, offering news, food, lifestyle and entertainment coverage for millions to the Golden Horseshoe and GTA regions. The independently-run, online news source was founded in 2019 and specializes in everything from breaking news to food and restaurant, arts and entertainment and lifestyle coverage.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

- Advertisment -

Most Popular

Astronomers estimate 29 potentially habitable exoplanets may have received signals from Earth

The Milky Way is a big place. There are an estimated 200 billion stars, most of them with one or more planets. As...

Brantford business owner says she got ‘zero’ Ontario COVID-19 money, calls for simpler process

Little by little, from a family death to watching her client base dissolve, it's been a tough year for Jeannine Webster. The...

Calgary-based guitarist and blues legend Ellen McIlwaine dies at 75

Guitarist and blues singer Ellen McIlwaine died Wednesday at the age of 75, and for Alberta's music community, it's the loss of a legend....

2 N.B. men posted a video asking for friends to hang out with. Now they’re TikTok famous

It was a simple enough TikTok video. Just two guys on a beach in Salisbury, N.B., wondering if anyone out there wanted to hang...

Recent Comments