Climate change: is the Earth at a crossroads?
New Intergovernmental Panel on Climate Change Report shows exceeding 1.5°C of warming would lead to irreversible adverse impacts

Humanity is at a “climate crossroads”, said Damian Carrington in The Guardian. “What we do in the next few years will determine our fate for millennia.”
That’s the message of the landmark report published this week by the Intergovernmental Panel on Climate Change (IPCC), which was compiled by the world’s leading climate experts and takes stock of the latest research. The window of opportunity to sustain “a liveable and sustainable future”, the report claims, is “rapidly closing”.
Global temperatures are already 1.1°C above pre-industrial levels, and they’re likely to reach 1.5°C above pre-industrial levels in the early 2030s regardless of what we do now. The real question is whether we stabilise the global temperature rise around that threshold or just blast right through it.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
The former option will require greenhouse gas emissions to peak “at the latest before 2025” and steeply reduce thereafter.
‘Irreversible adverse impacts’
If we exceed 1.5°C of warming, “we won’t like it”, said Eugene Robinson in The Washington Post. The IPCC predicts with “high confidence” that it would lead to “irreversible adverse impacts” on vulnerable ecosystems.
Were we to hit 2°C of warming, the effects of increased wildfires, drying of peatlands and permafrost thawing would make it very hard to turn back the temperature rise. It would be “like trying to climb a greased pole”.
One consolation is that the IPCC believes green reforms have made the “most dystopian scenarios”, involving 4°C or more of warming, much less likely than once feared.
On the other hand, it believes its projections for when adverse impacts would kick in were too conservative. We’re already suffering some of the extreme weather events it thought would occur when we hit 1.5°C of warming.
‘All that’s missing is the political will’
The good news, said Jack Kessler in the Evening Standard, is that we can still rescue the situation. Renewable technologies are available and rapid progress is possible. “Only 66 years separated the Wright brothers’ first flight and Neil Armstrong setting foot on the Moon.” All that’s missing is the political will.
Call me cynical, said Elizabeth Kolbert in The New Yorker, but I can’t see this report spurring urgent action when so many previous ones have failed to.
According to a recent study, China approved 106 gigawatts’ worth of new coal-fired power plants in 2022, the equivalent of two large plants a week. The Biden administration has just approved a huge new oil drilling venture in Alaska.
“Can actions like this be squared with halving emissions by 2030 and eliminating them by 2050? The simple answer is no.”
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
-
The worst coral bleaching event breaks records
The Explainer Bleaching has now affected 84% of the world's coral reefs
-
Why UK scientists are trying to dim the Sun
In The Spotlight The UK has funded controversial geoengineering techniques that could prove helpful in slowing climate change
-
Electric ferries are becoming the next big environmental trend
Under the Radar From Hong Kong to Lake Tahoe, electric ferries are the new wave
-
Ukraine is experiencing an 'ecocide' and wants Russia to pay
Under the radar The environment is a silent victim of war
-
How wild horses are preventing wildfires in Spain
Under The Radar The animals roam more than 5,700 hectares of public forest, reducing the volume of combustible vegetation in the landscape
-
Scientists invent a solid carbon-negative building material
Under the radar Building CO2 into the buildings
-
Dozens of deep-sea creatures discovered after iceberg broke off Antarctica
Under the radar The cold never bothered them anyway
-
Earth's climate is in the era of 'global weirding'
The Explainer Weather is harder to predict and more extreme