State of the Planet

News from the Columbia Climate School

Energy56

  • Prescriptive science?

    This is just a short post to draw your attention to John Tierney’s New York Times column on John Holdren’s appointment as Obama’s science advisor. Tierney contends that: “Dr. Holdren is certainly entitled to his views, but what concerns me is his tendency to conflate the science of climate change with prescriptions to cut greenhouse…

  • Biofuels, food security, deforestation, and loss of biodiversity

    Biofuel use is one of the strategies to reduce greenhouse gas (GHG) emissions that has already been incorporated into policy and regulatory frameworks. However, it has become increasingly evident that biofuel production has unintended consequences that extend beyond national boundaries and beyond the energy sector. Chief among these are concerns for food security. The food…

Colorful icons representing nature, sustainable living, and renewable energy with text "Earth Day 2026"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. Today, our scientists and experts are tackling the most pressing challenges to achieve real-world impact. This Earth Day, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.

  • Prescriptive science?

    This is just a short post to draw your attention to John Tierney’s New York Times column on John Holdren’s appointment as Obama’s science advisor. Tierney contends that: “Dr. Holdren is certainly entitled to his views, but what concerns me is his tendency to conflate the science of climate change with prescriptions to cut greenhouse…

  • Biofuels, food security, deforestation, and loss of biodiversity

    Biofuel use is one of the strategies to reduce greenhouse gas (GHG) emissions that has already been incorporated into policy and regulatory frameworks. However, it has become increasingly evident that biofuel production has unintended consequences that extend beyond national boundaries and beyond the energy sector. Chief among these are concerns for food security. The food…