Tracking US geoengineering bans.

Solar geoengineering legislation has been proposed in most states and at the federal level.

Follow their status here

Tracking the SRM landscape.

How much is being spent, who is spending it, and where is it going?

DIVE INTO THE DATA

What is SRM?

What are sunlight reflection methods – also known as solar geoengineering – and why do they matter now?

Explore SRM

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Perspective matters.

Big ideas are bound to generate disagreement. We spotlight diverse, informed opinions.

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Latest Content

Perspective

Cooperation on Climate Is Hard – SRM Would Make It Harder

4 min read

Video

Live Discussion Sea Ice Geoengineering

Live Discussion: Making Sense of Sea Ice and Solar Geoengineering

69 mins

Perspective

Open Letter: Scientists Call for More Climate Intervention Research

2 min read

News Reaction

Scientists Divided Over Polar Geoengineering Study

8 mins

Perspective

No, Polar Geoengineering Has Not Been Debunked

8 min read

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How Could SRM Affect Brazil?

On the Horizon

Live Discussion

October 28 2025

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Three scarlet ibis flying near a tree with the sky in the background

Could solar geoengineering help or harm the Amazon?

Join us for our next live discussion. We'll look at the Amazon, its decline, and what impacts solar geoengineering could have on the rainforest.

Thelma Krug

Marcos Regis da Silva

Marcos Regis da Silva

Peter Cox

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Scarlet ibis in Pará, Brazil

Credit: Eduardo Fonseca Arraes

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