At the state capitol, negotiations are heating up over California's signature program to fight climate change. It's called cap and trade, and the state uses it to cap greenhouse gas emissions. But the program expires in 2030, and lawmakers are debating how to extend the program amid rising energy costs and concerns about the closure of oil refineries. Joining us to discuss is KQED politics correspondent Guy Marzorati.

<p>At the state capitol, negotiations are heating up over California's signature program to fight climate change. It's called cap and trade, and the state uses it to cap greenhouse gas emissions. But the program expires in 2030, and lawmakers are debating how to extend the program amid rising energy costs and concerns about the closure of oil refineries. Joining us to discuss is KQED politics correspondent Guy Marzorati.</p>

KQED serves the people of Northern California with a community-supported alternative to commercial media. We provide citizens with the knowledge they need to make informed decisions; convene community dialogue; bring the arts to everyone; and engage audiences to share their stories.

<p>KQED serves the people of Northern California with a community-supported alternative to commercial media. We provide citizens with the knowledge they need to make informed decisions; convene community dialogue; bring the arts to everyone; and engage audiences to share their stories.</p>