State of the Planet

News from the Columbia Climate School

Water60

  • Who owns the Nile?

    Who owns the Nile? Nine countries want to have a say in answering that question, and they don’t agree. The great river moves through Burundi, Egypt, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, Uganda, and the Democratic Republic of the Congo, so they all may claim her as at least partly their own.

  • Why Women Matter

    Megatons of carbon dioxide, radiative forcing, technology deployment, cap-and-trade systems: this is the common vocabulary of climate change. Concepts of equality, justice and ethics are relative latecomers to this highly specialized and technical world. Where they have emerged, terms like ‘climate justice’ usually refer to the interests of developing nations as a whole, reflecting the deep…

  • Applied Climate Research: A Conversation with Stefan Sobolowski (Part 2)

    In part 1 of this interview, I talked with Columbia Water Center hydroclimatologist Stefan Sobolowski about the effects of continental snowcover on climate, and the implications of his research on climate change. In part 2, we talk about the problem of uncertainty in climate prediction models, extreme weather events, the regional variation of climate change…

  • Peak Ecological Water

    ‘Peak ecological water’ is the point at which so much water is being diverted from the environment for human use, that the ecosystem can no longer function normally. It can even get to the point that an ecosystem is irreversibly damaged, and there are estimates that humans already divert almost 50% of all accessible freshwater…

  • Concord Bans Bottled Water

    Concord, Massachusetts is famous for the fact that Thoreau lived there at Walden Pond in the 1800s. But today, the environmentally conscious town is gaining more and more press as the first town in the United States to ban the sale of bottled water. bottledwaterAn 82-year-old woman named Jean Hill orchestrated the ban, and it…

  • Event: Himalayan Glaciers and Asia’s Looming Water Crisis

    Event: Himalayan Glaciers and Asia’s Looming Water Crisis

    Columbia Water Center, The Asia Society and The Economist are cosponsoring the event Himalayan Glaciers and Asia’s Looming Water Crisis, Wednesday July 14, 2010, 6:30pm at the Asia Society.

  • Climate News Roundup — Week of 6/14

    Bill Gates funds cloud-whitening effort to reduce global warming.  USA Today Bill Gates is funding research into whether or not it is effective and feasible to increase the albedo of atmospheric clouds by spray sea mist high into the atmosphere. The plan, spearheaded by Silicon Valley inventor Armand Neukermans, is a relatively benign method of…

  • A Visit to Gowanus

    I recently took a trip to the Gowanus neighborhood in Brooklyn to visit its infamously polluted (and smelly) canal. After decades of controversy, the Environmental Protection Agency recently named the canal as a Superfund site—one of the few such designations in an inner-urban area. In its report, the EPA found that the Gowanus Canal “has…

  • Energy, Agriculture, and the Environment: Dead Zones and the Oil Spill in the Gulf of Mexico

    Energy, Agriculture, and the Environment: Dead Zones and the Oil Spill in the Gulf of Mexico

    Catastrophic, tragic, disastrous: these are all words that have been used to describe the BP oil spill in the Gulf of Mexico.  It is impossible to deny that these words apply – thick, goopy crude has already coated the beaches and estuaries of the Gulf, contaminating more than 120 miles of coastline.  The spill is…

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.

  • Who owns the Nile?

    Who owns the Nile? Nine countries want to have a say in answering that question, and they don’t agree. The great river moves through Burundi, Egypt, Ethiopia, Kenya, Rwanda, Sudan, Tanzania, Uganda, and the Democratic Republic of the Congo, so they all may claim her as at least partly their own.

  • Why Women Matter

    Megatons of carbon dioxide, radiative forcing, technology deployment, cap-and-trade systems: this is the common vocabulary of climate change. Concepts of equality, justice and ethics are relative latecomers to this highly specialized and technical world. Where they have emerged, terms like ‘climate justice’ usually refer to the interests of developing nations as a whole, reflecting the deep…

  • Applied Climate Research: A Conversation with Stefan Sobolowski (Part 2)

    In part 1 of this interview, I talked with Columbia Water Center hydroclimatologist Stefan Sobolowski about the effects of continental snowcover on climate, and the implications of his research on climate change. In part 2, we talk about the problem of uncertainty in climate prediction models, extreme weather events, the regional variation of climate change…

  • Peak Ecological Water

    ‘Peak ecological water’ is the point at which so much water is being diverted from the environment for human use, that the ecosystem can no longer function normally. It can even get to the point that an ecosystem is irreversibly damaged, and there are estimates that humans already divert almost 50% of all accessible freshwater…

  • Concord Bans Bottled Water

    Concord, Massachusetts is famous for the fact that Thoreau lived there at Walden Pond in the 1800s. But today, the environmentally conscious town is gaining more and more press as the first town in the United States to ban the sale of bottled water. bottledwaterAn 82-year-old woman named Jean Hill orchestrated the ban, and it…

  • Event: Himalayan Glaciers and Asia’s Looming Water Crisis

    Event: Himalayan Glaciers and Asia’s Looming Water Crisis

    Columbia Water Center, The Asia Society and The Economist are cosponsoring the event Himalayan Glaciers and Asia’s Looming Water Crisis, Wednesday July 14, 2010, 6:30pm at the Asia Society.

  • Climate News Roundup — Week of 6/14

    Bill Gates funds cloud-whitening effort to reduce global warming.  USA Today Bill Gates is funding research into whether or not it is effective and feasible to increase the albedo of atmospheric clouds by spray sea mist high into the atmosphere. The plan, spearheaded by Silicon Valley inventor Armand Neukermans, is a relatively benign method of…

  • A Visit to Gowanus

    I recently took a trip to the Gowanus neighborhood in Brooklyn to visit its infamously polluted (and smelly) canal. After decades of controversy, the Environmental Protection Agency recently named the canal as a Superfund site—one of the few such designations in an inner-urban area. In its report, the EPA found that the Gowanus Canal “has…

  • Energy, Agriculture, and the Environment: Dead Zones and the Oil Spill in the Gulf of Mexico

    Energy, Agriculture, and the Environment: Dead Zones and the Oil Spill in the Gulf of Mexico

    Catastrophic, tragic, disastrous: these are all words that have been used to describe the BP oil spill in the Gulf of Mexico.  It is impossible to deny that these words apply – thick, goopy crude has already coated the beaches and estuaries of the Gulf, contaminating more than 120 miles of coastline.  The spill is…