Kevin Bullis

A View from Kevin Bullis

International Geoengineering Agreement Needed

Some scientists think we may need to cool down the earth, but don’t want to cause an international incident while testing the idea.

  • January 29, 2010

The prospect of geoengineering, the intentional large-scale manipulation of the climate to offset the effects of global warming, continues to draw the attention of top scientists and policymakers. The prestigious journal Science is publishing two papers on the subject in its next issue, and next week the Science Committee of the House of Representatives will hold its second hearing on the subject.

According to some climate models, climates could change very quickly as greenhouse gas emissions rise, such as when thawing permafrost releases methane (a powerful heat-trapping gas), or loss of ice causes the earth to absorb more heat. Such outcomes might not be very likely, but even the chance that they could happen has scientists worried, as they could lead to widespread severe drought and famine and rapid sea level rise, among other things. Even the most ambitious efforts to curb greenhouse emissions might not be enough to prevent disastrous climate change, some say. And ambitious efforts to cut emissions seem ever more unlikely, after the limited success of the recent summit in Copenhagen, and opposition to a climate change bill in the Senate.

In one of the Science articles, researchers say testing of geoengineering strategies may prove necessary, but before testing can occur, they say an international agreement should be reached. Such testing could cause changes in weather patterns that could hurt some countries, for example, and an agreement needs to be in place to establish standard testing procedures and methods for dealing with international disputes arising from such testing.

Such an agreement might be even more important if the argument of another Science paper proves to be correct. In that paper the researchers argue that the only way to effectively test geoengineering is through full scale implementation of a particular geoengineering scheme–and such a large deployment could have big, unforeseen consequences.

Hear more about geoengineering at EmTech MIT 2017.

Register now

Uh oh–you've read all of your free articles for this month.

Insider Premium
$179.95/yr US PRICE

More from Sustainable Energy

Can we sustainably provide food, water, and energy to a growing population during a climate crisis?

Want more award-winning journalism? Subscribe and become an Insider.
  • Insider Premium {! insider.prices.premium !}*

    {! insider.display.menuOptionsLabel !}

    Our award winning magazine, unlimited access to our story archive, special discounts to MIT Technology Review Events, and exclusive content.

    See details+

    What's Included

    Bimonthly magazine delivery and unlimited 24/7 access to MIT Technology Review’s website

    The Download: our daily newsletter of what's important in technology and innovation

    Access to the magazine PDF archive—thousands of articles going back to 1899 at your fingertips

    Special discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

    First Look: exclusive early access to important stories, before they’re available to anyone else

    Insider Conversations: listen in on in-depth calls between our editors and today’s thought leaders

  • Insider Plus {! insider.prices.plus !}* Best Value

    {! insider.display.menuOptionsLabel !}

    Everything included in Insider Basic, plus ad-free web experience, select discounts to partner offerings and MIT Technology Review events

    See details+

    What's Included

    Bimonthly magazine delivery and unlimited 24/7 access to MIT Technology Review’s website

    The Download: our daily newsletter of what's important in technology and innovation

    Access to the magazine PDF archive—thousands of articles going back to 1899 at your fingertips

    Special discounts to select partner offerings

    Discount to MIT Technology Review events

    Ad-free web experience

  • Insider Basic {! insider.prices.basic !}*

    {! insider.display.menuOptionsLabel !}

    Six issues of our award winning magazine and daily delivery of The Download, our newsletter of what’s important in technology and innovation.

    See details+

    What's Included

    Bimonthly magazine delivery and unlimited 24/7 access to MIT Technology Review’s website

    The Download: our daily newsletter of what's important in technology and innovation

/
You've read all of your free articles this month. This is your last free article this month. You've read of free articles this month. or  for unlimited online access.