In California, six youth activists were arrested after holding a sit-in protest at California Governor Jerry Brown’s office to demand action on climate change.

Protester: “We need clean air!”

Protesters: “We need clean air!”

Protester: “No new oil expansion!”

Protesters: “No new oil expansion!”

Protester: “No new gas expansion!”

Protesters: “No new gas expansion!”

Protester: “Jerry Brown, this is your last chance!”

Protesters: “Jerry Brown, this is your last chance!”

The youth sit-in protest at Governor Jerry Brown’s office comes as fire officials say the Mendocino Complex fire—the largest fire in California history—is expected to burn uncontrollably for at least the rest of this month. It is currently the size of Los Angeles.

And in more climate change news, a group of leading scientists are warning that the cascading effects of melting ice, warming seas, shifting currents and dying forests could push the planet into a “hothouse” state, in which efforts to reduce greenhouse gas emissions are increasingly futile. Their study was published in the journal Proceedings of the National Academy of Sciences.