State of the Planet

News from the Columbia Climate School

happiness

  • Data Visualization: World Happiness Trends

    Data Visualization: World Happiness Trends

    Could the number of women in a nation’s government have an impact on its happiness? Can air quality effect the mood of a population? Do trains make people happier? Explore World Happiness Report data and trends that might also contribute to a country’s overall well-being.

  • Why Happiness Is Important

    Why Happiness Is Important

    The World Happiness Report 2015 measures and ranks the happiness of individuals in 158 countries around the globe. Which countries are the happiest and why?

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

  • Data Visualization: World Happiness Trends

    Data Visualization: World Happiness Trends

    Could the number of women in a nation’s government have an impact on its happiness? Can air quality effect the mood of a population? Do trains make people happier? Explore World Happiness Report data and trends that might also contribute to a country’s overall well-being.

  • Why Happiness Is Important

    Why Happiness Is Important

    The World Happiness Report 2015 measures and ranks the happiness of individuals in 158 countries around the globe. Which countries are the happiest and why?