State of the Planet

News from the Columbia Climate School

choice architecture

  • Helping Consumers See the Green Behind Fuel Economy

    Helping Consumers See the Green Behind Fuel Economy

    New research from the Center for Research on Environmental Decisions sheds light on how best to present information on U.S. fuel economy labels. Consumers choose fuel-efficient vehicles more frequently when fuel economy is expressed in terms of the cost of gas on a long term, 100,000-mile scale. The scale currently used on the U.S. fuel…

  • Making Green Behavior Automatic

    Making Green Behavior Automatic

    A default is defined as an option that applies if the chooser does nothing. The good news is that setting greener choices as defaults can automatically nudge people into more sustainable behavior.

Rainforest and Columbia campus collage banner with text "UN COP30, Belem, Brazil, Nov 10-21, 2025"

During COP30—the 2025 UN Climate Change Conference taking place November 10–21 in Belém, Brazil—experts from Columbia Climate School and Columbia University will be contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More

  • Helping Consumers See the Green Behind Fuel Economy

    Helping Consumers See the Green Behind Fuel Economy

    New research from the Center for Research on Environmental Decisions sheds light on how best to present information on U.S. fuel economy labels. Consumers choose fuel-efficient vehicles more frequently when fuel economy is expressed in terms of the cost of gas on a long term, 100,000-mile scale. The scale currently used on the U.S. fuel…

  • Making Green Behavior Automatic

    Making Green Behavior Automatic

    A default is defined as an option that applies if the chooser does nothing. The good news is that setting greener choices as defaults can automatically nudge people into more sustainable behavior.