State of the Planet

News from the Columbia Climate School

tropics

  • Photo Essay: The Re-Greening of Puerto Rico

    Photo Essay: The Re-Greening of Puerto Rico

    Researchers survey the damage to Puerto Rico’s forests in the aftermath of Hurricane Maria.

  • An Ecological Traffic Jam in the Warming Tropics?

    An Ecological Traffic Jam in the Warming Tropics?

    The tropics are already hot, and they’re getting hotter as global temperatures rise. A new study offers a glimpse into how seriously a couple more degrees could disrupt the region’s ecological map.

  • Tropical Rainfall from Hours to Millennia

    Tropical Rainfall from Hours to Millennia

    Most of Earth’s rainfall occurs in a tropical zonal band that circles the Earth. Understanding how this band will responds to climate change requires us to combine time scales from hours to millennia.

  • Seeing the Amazon’s Future Through the Fog

    Seeing the Amazon’s Future Through the Fog

    Scientists have developed a new approach to modeling the water and carbon cycles in the Amazon that could lead to better climate forecasts and improved water resource management.

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.

  • Photo Essay: The Re-Greening of Puerto Rico

    Photo Essay: The Re-Greening of Puerto Rico

    Researchers survey the damage to Puerto Rico’s forests in the aftermath of Hurricane Maria.

  • An Ecological Traffic Jam in the Warming Tropics?

    An Ecological Traffic Jam in the Warming Tropics?

    The tropics are already hot, and they’re getting hotter as global temperatures rise. A new study offers a glimpse into how seriously a couple more degrees could disrupt the region’s ecological map.

  • Tropical Rainfall from Hours to Millennia

    Tropical Rainfall from Hours to Millennia

    Most of Earth’s rainfall occurs in a tropical zonal band that circles the Earth. Understanding how this band will responds to climate change requires us to combine time scales from hours to millennia.

  • Seeing the Amazon’s Future Through the Fog

    Seeing the Amazon’s Future Through the Fog

    Scientists have developed a new approach to modeling the water and carbon cycles in the Amazon that could lead to better climate forecasts and improved water resource management.