Skip to main content

The Union of Concerned Scientists

Sign Up en español Search Donate Menu

Belém

Filipe Frazao/Getty Images

October 28, 2025

Brazil Hosts COP30 Climate Talks, with the World in Danger of Breaching 1.5°C

Rachel Cleetus
Policy Director

Get email updates

Sign up for updates from UCS; unsubscribe at any time.

Support our work

Make it monthly Donate

Visit the store

Escuche el podcast

For text alerts, text "SCIENCE" to 67369 or sign up online.

Receive urgent alerts about opportunities to defend science. Recurring messages. Reply STOP to cancel. Msg & data rates may apply. Terms, Conditions, and Privacy Policy.

Privacy Policy State Disclosures FAQ News Jobs Contact

© Union of Concerned Scientists We are a 501(c)(3) nonprofit organization. 2 Brattle Square, Cambridge MA 02138, USA (617) 547-5552

Facebook Twitter Youtube Instagram

We use cookies to improve your experience. By continuing, you accept our use of cookies. Learn more.

Climate Change
Corporate Accountability
Energy
Food and Agriculture
Global Security
Science and Democracy
Transportation

Meet Our Authors
UCS en español
Blog en español
Search
Sign up
Donate