Â鶹ӰÊÓ

Skip to main content

2023 confirmed as planet's hottest on record, likely the warmest in 100,000 years: climate experts

Share
BRUSSELS, Jan 9 -

Last year was the planet's hottest on record by a substantial margin and likely the world's warmest in the last 100,000 years, the European Union's Copernicus Climate Change Service (C3S) said on Tuesday.

Scientists had widely expected the milestone, after climate records were repeatedly broken. Since June, every month has been the world's hottest on record compared with the corresponding month in previous years.

"This has been a very exceptional year, climate-wise... in a league of its own, even when compared to other very warm years," C3S Director Carlo Buontempo said.

C3S confirmed 2023 as the hottest year in global temperature records going back to 1850. When checked against paleoclimatic data records from sources such as tree rings and air bubbles in glaciers, Buontempo said it was "very likely" the warmest year in the last 100,000 years.

On average, in 2023 the planet was 1.48 degrees Celsius warmer than in the 1850-1900 pre-industrial period, when humans began burning fossil fuels on an industrial scale, pumping carbon dioxide into the atmosphere.

Countries agreed in the 2015 Paris Agreement to try to prevent global warming surpassing 1.5C (2.7 degrees Fahrenheit), to avoid its most severe consequences.

The world has not breached that target - which refers to an average global temperature of 1.5C over decades - but C3S said that temperatures had exceeded the level on nearly half of the days of 2023 set "a dire precedent."

RECORD EMISSIONS

Despite the proliferation of governments' and companies' climate targets, CO2 emissions remain stubbornly high. The world's CO2 emissions from burning coal, oil and gas hit record levels in 2023.

Last year, the concentration of CO2 in the atmosphere rose to the highest level recorded, of 419 parts per million, C3S said.

It was also the first year in which every day was more than 1C hotter than pre-industrial times. For the first time, two days - both of them in November - were 2C warmer than in the pre-industrial period, C3S said.

Last year was 0.17C hotter than 2016, the previous hottest year - smashing the record by a "remarkable" margin, Buontempo said.

Alongside human-caused climate change, in 2023 temperatures were boosted by the El Nino weather phenomenon, which warms the surface waters in the eastern Pacific Ocean and contributes to higher global temperatures.

Each fraction of temperature increase exacerbates extreme and destructive weather disasters. In 2023, the hotter planet aggravated deadly heatwaves from China to Europe, extreme rain which caused floods killing thousands of people in Libya and Canada's worst wildfire season on record.

"Comparable small changes in global temperatures have huge impacts on people and ecosystems," Friederike Otto, a climate scientist who co-leads the World Weather Attribution global research collaboration.

"Every tenth of a degree matters," she added.

The economic consequences of climate change are also escalating. The U.S. suffered at least 25 climate and weather disasters with damages exceeding US$1 billion, National Centers for Environmental Information data show. Prolonged droughts ravaged soybean crops in Argentina and wheat in Spain.

(additional reporting by Gloria Dickie; editing by Barbara Lewis)

CTVNews.ca Top Stories

Canadian musician Jacob Hoggard has been found not guilty of sexually assaulting a young woman in northeastern Ontario eight years ago. The former Hedley frontman had pleaded not guilty to sexual assault.

Police have arrested a Toronto woman in connection with three recent homicides and investigators say that they believe two of the victims may have been 'randomly targeted.'

The body of a British Columbia mountain climber has been located and recovered after the 39-year-old man was reported missing during a solo climb on Washington state's Mount Baker earlier this week.

A teen charged with the murder of another teen on Prince Edward Island last year has pleaded guilty to a lesser charge of manslaughter.

A Saskatchewan man living in the United States has pleaded guilty to possessing child pornography after he unknowingly provided disturbing videos to an FBI agent he thought was a pedophile.

Local Spotlight

Chantal Kreviazuk is set to return to Winnipeg to mark a major milestone in her illustrious musical career.

From the beaches of Cannes to the bustling streets of New York City, a new film by a trio of Manitoba directors has toured the international film festival circuit to much pomp and circumstance.

A husband and wife have been on the road trip of a lifetime and have decided to stop in Saskatchewan for the winter.

The grave of a previously unknown Canadian soldier has been identified as a man from Hayfield, Man. who fought in the First World War.

A group of classic car enthusiasts donated hundreds of blankets to nursing homes in Nova Scotia.

Moving into the second week of October, the eastern half of Canada can expect some brisker fall air to break down from the north

What does New Westminster's təməsew̓txʷ Aquatic and Community Centre have in common with a historic 68,000-seat stadium in Beijing, an NFL stadium and the aquatics venue for the Paris Olympics? They've all been named among the world's most beautiful sports venues for 2024.

The last living member of the legendary Vancouver Asahi baseball team, Kaye Kaminishi, died on Saturday, Sept. 28, surrounded by family. He was 102 years old.

New data from Greater Vancouver and the Fraser Valley shows a surge in supply and drop in demand in the region's historically hot real estate market.