State of the Planet

News from the Columbia Climate School

zero emissions

  • Why We Need Green Hydrogen

    Why We Need Green Hydrogen

    Hydrogen produced with renewable energy can provide clean power in the industries that are hardest to wean off of fossil fuels.

  • For Climate Change, Carbon Pricing is No Silver Bullet

    For Climate Change, Carbon Pricing is No Silver Bullet

    Many economists and policy experts believe carbon pricing is the most effective way to deal with global warming. But others argue that carbon pricing is not a silver bullet for dealing with climate change. Here’s why.

Banner with images representing environmental issues and text "You Asked: Our Scientists and Experts Answer Your Burning Questions."

You Asked invites you to share your most pressing questions about climate, science, and sustainability. Lamont-Doherty Earth Observatory and Columbia Climate School experts will respond with clear, evidence-based answers. Pose your questions and story ideas!

  • Why We Need Green Hydrogen

    Why We Need Green Hydrogen

    Hydrogen produced with renewable energy can provide clean power in the industries that are hardest to wean off of fossil fuels.

  • For Climate Change, Carbon Pricing is No Silver Bullet

    For Climate Change, Carbon Pricing is No Silver Bullet

    Many economists and policy experts believe carbon pricing is the most effective way to deal with global warming. But others argue that carbon pricing is not a silver bullet for dealing with climate change. Here’s why.