Skip to Content
Climate change

How to keep global warming below 1.5 °C

Hitting the Paris climate pact’s aspirational target may be possible—but it won’t be easy.

Backstory: The main goal of the climate agreement is to keep global temperature rise below 2 °C, so most analysis has focused on how to achieve that. But the pact’s signatories aspire to an even tighter threshold of 1.5 °C.

What’s new: Ars Technica reports that researchers from the International Institute for Applied Systems Analysis have modeled scenarios to see what changes might help humankind keep warming below 1.5 °C.

What to do: Global emissions would need to peak soon and fall to zero around 2060. Coal must be killed off by 2050 and oil even sooner. Renewables must account for 60 to 80 percent of power, and carbon-capture technology needs to remove the equivalent of 30 years’ worth of global carbon dioxide by 2100. Phew.

Bottom line: It’s possible to meet the target, but it requires the planet to collectively embark on a Herculean effort. Like, now.

Deep Dive

Climate change

China’s heat wave is creating havoc for electric vehicle drivers

The country is a leader in EV adoption, but extreme weather is exposing weaknesses in its charging infrastructure.

We must fundamentally rethink “net-zero” climate plans. Here are six ways.

Corporate climate plans are too often a mix of fuzzy math, flawed assumptions, and wishful thinking.

This is what’s keeping electric planes from taking off

Batteries could power planes, but weight will limit how far they fly.

The US agency in charge of developing fossil fuels has a new job: cleaning them up

The Office of Fossil Energy and Carbon Management has a new name, new leaders, and a new mandate to meet Joe Biden’s climate goals.

Stay connected

Illustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.