State of the Planet

News from the Columbia Climate School

Water Scarcity10

  • Hitting the Green in Cuba–Again

    Hitting the Green in Cuba–Again

    In a somewhat distressing development, the New York Times reports that the Cuban golf industry will soon be back in business after a 50-year hiatus that started when Fidel Castro first came to power.

  • Squeezing the Last Drops out of Sicily

    Squeezing the Last Drops out of Sicily

    If you were to drive south from Palermo, Sicily toward Monreale, you would be ringed in by green mountains, the sparkling white of ancient and modern buildings and the azure Mediterranean Sea receding behind you. Continuing south through the island’s mountainous interior, you would pass verdant agricultural fields on your way past Corleone, the namesake…

  • Water-Saving Project in Punjab, India Reaches Out to Farmers Through Cooperatives

    Water-Saving Project in Punjab, India Reaches Out to Farmers Through Cooperatives

    After working with over 500 farmers last year to conduct a field experiment on the use of tensiometers to reduce irrigation in rice fields, this year they will be working with about 5,000. As part of this expansion, our program partners at the Punjab Agricultural University (PAU) are working with Cooperative Societies, a network of…

  • The Push to Dam China’s Rivers

    The Push to Dam China’s Rivers

    China already has half the world’s large hydroelectric dams (25,800), but along the Yangtze River and its tributaries, 100 large dams are either being planned or built and 43 additional dams are in the works.

  • Giving the Earth a Cool Shower–Is Massive Irrigation Hiding the Greenhouse Effect Around the World?

    Giving the Earth a Cool Shower–Is Massive Irrigation Hiding the Greenhouse Effect Around the World?

    According to research published in Climate Dynamics by Benjamin I. Cook, Michael Puma and Nir Krakauer, it is possible that massive irrigation is masking expected warming trends from Greenhouse Gasses .

  • Post bin Laden, Working Toward Afghanistan’s Water Security

    Post bin Laden, Working Toward Afghanistan’s Water Security

    Osama bin Laden is history, but decades of war and civil strife pose challenges to Afghanistan’s water infrastructure.

  • How China Is Dealing With Its Water Crisis

    How China Is Dealing With Its Water Crisis

    Recently I traveled to Southeast Yunnan in China to see the spectacular Yuan Yang rice terraces, flooded and ready for spring planting. Rice is a very water-hungry crop and China is the world’s largest producer of rice and grain. Yet China is facing a perilous water crisis.

  • Reusing Dirty Water

    Reusing Dirty Water

    Columbia Water Center guest lecturer Raymond Farinato talks about increasing water supply by reusing wastewater in industrial applications.

  • The Middle East Dries Up—Another Case Study in the Water-Energy-Food Nexus

    The Middle East Dries Up—Another Case Study in the Water-Energy-Food Nexus

    As seductive as it is, depleting non-renewable aquifers to grow food is fundamentally unsustainable for the long term, as Saudi Arabia and other nations are finding out. According to a recent article by Lester Brown, in the 1970s the world’s largest oil producer realized it could use oil-drilling technology to tap deep underwater aquifers and—amazingly,…

Earth Month Graphic Collage: "Our Power, Our Planet - April 2025"

The first Earth Day in 1970 ignited a movement to stop polluting our planet. This Earth Month, 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.

  • Hitting the Green in Cuba–Again

    Hitting the Green in Cuba–Again

    In a somewhat distressing development, the New York Times reports that the Cuban golf industry will soon be back in business after a 50-year hiatus that started when Fidel Castro first came to power.

  • Squeezing the Last Drops out of Sicily

    Squeezing the Last Drops out of Sicily

    If you were to drive south from Palermo, Sicily toward Monreale, you would be ringed in by green mountains, the sparkling white of ancient and modern buildings and the azure Mediterranean Sea receding behind you. Continuing south through the island’s mountainous interior, you would pass verdant agricultural fields on your way past Corleone, the namesake…

  • Water-Saving Project in Punjab, India Reaches Out to Farmers Through Cooperatives

    Water-Saving Project in Punjab, India Reaches Out to Farmers Through Cooperatives

    After working with over 500 farmers last year to conduct a field experiment on the use of tensiometers to reduce irrigation in rice fields, this year they will be working with about 5,000. As part of this expansion, our program partners at the Punjab Agricultural University (PAU) are working with Cooperative Societies, a network of…

  • The Push to Dam China’s Rivers

    The Push to Dam China’s Rivers

    China already has half the world’s large hydroelectric dams (25,800), but along the Yangtze River and its tributaries, 100 large dams are either being planned or built and 43 additional dams are in the works.

  • Giving the Earth a Cool Shower–Is Massive Irrigation Hiding the Greenhouse Effect Around the World?

    Giving the Earth a Cool Shower–Is Massive Irrigation Hiding the Greenhouse Effect Around the World?

    According to research published in Climate Dynamics by Benjamin I. Cook, Michael Puma and Nir Krakauer, it is possible that massive irrigation is masking expected warming trends from Greenhouse Gasses .

  • Post bin Laden, Working Toward Afghanistan’s Water Security

    Post bin Laden, Working Toward Afghanistan’s Water Security

    Osama bin Laden is history, but decades of war and civil strife pose challenges to Afghanistan’s water infrastructure.

  • How China Is Dealing With Its Water Crisis

    How China Is Dealing With Its Water Crisis

    Recently I traveled to Southeast Yunnan in China to see the spectacular Yuan Yang rice terraces, flooded and ready for spring planting. Rice is a very water-hungry crop and China is the world’s largest producer of rice and grain. Yet China is facing a perilous water crisis.

  • Reusing Dirty Water

    Reusing Dirty Water

    Columbia Water Center guest lecturer Raymond Farinato talks about increasing water supply by reusing wastewater in industrial applications.

  • The Middle East Dries Up—Another Case Study in the Water-Energy-Food Nexus

    The Middle East Dries Up—Another Case Study in the Water-Energy-Food Nexus

    As seductive as it is, depleting non-renewable aquifers to grow food is fundamentally unsustainable for the long term, as Saudi Arabia and other nations are finding out. According to a recent article by Lester Brown, in the 1970s the world’s largest oil producer realized it could use oil-drilling technology to tap deep underwater aquifers and—amazingly,…