What progress has been made and what could change with the U.S.’s reentry?

Whether or not we rejoin — and thereby do our part to prevent the worst impacts of climate change — depends on the outcome of the election.

The same level of emissions cuts reached during the pandemic would need to be repeated each year to achieve the goals of the Paris Agreement by 2030.

New report finds that a moderate carbon tax could dramatically cut greenhouse gas emissions, with only minor effects on the economy.

The International Research Institute for Climate and Society’s Alessandra Giannini was selected as one of French President’s Macron’s climate laureates.

A conference at Columbia University yielded consensus on the need for an international environmental agreement, and advanced discussion on what that agreement could look like.

Columbia joins leaders from across higher education, the private sector and state and local governments in affirming their commitment to the Paris Agreement.

While we still do not know the long-term impact of President Trump’s withdrawal from the Paris climate accord, the short-term impact has been to mobilize a broad segment of the U.S. and global public in support of the agreement.

Experts from across the Earth Institute give their reactions to the news that the U.S. will exit the Paris climate agreement.

Yochanan Kushnir: “As a climate scientist who directly engages in studying the phenomena and mechanisms of climate variability and change I am convinced that we are headed towards a different, and to many people hostile, state of the climate system, with a worldwide impact including many parts of the U.S.”