United Nations

UN Secretary-General: Rising seas mean rising “misery”

​Moderator Rachel Ramirez, CNN; Dennis Francis, permanent representative of Trinidad and Tobago, president of the General Assembly for the 78th session; and Dr. Nadya Vinogradova Shiffer, director of the Ocean Physics program at NASA
Moderator Rachel Ramirez, CNN; Dennis Francis, permanent representative of Trinidad and Tobago, president of the General Assembly for the 78th session; and Dr. Nadya Vinogradova Shiffer, director of the Ocean Physics program at NASA
Billy Pickett

UNITED NATIONS – For the first time, the United Nations convened a high-level meeting to address the global threats posed by rising sea levels. Secretary-General António Guterres warned attendees on Wednesday that “rising seas mean a rising tide of misery.”

Nations define themselves by their territorial boundaries. But those participating in the high-level meeting were seeking to update international law to reflect the reality of a warming planet and sinking coastlines. The Permanent Representative of Trinidad and Tobago to the United Nations Dennis Francis described the mood as “one of consensus and solidarity.”

Astudy cited by the IPCC — the UN’s top climate change body — projected that the island nations of Tuvalu, Maldives, Marshall Islands, Nauru, and Kiribati may become completely uninhabitable by 2100. If that projection comes true, around 600,000 citizens will become climate refugees.

Creating a new global consensus is essential to address this crisis, but how does one convince people who live far inland, or climate change deniers, to care about this issue?

Francis described sea level rise as a “hydra” affecting “everything,” far more than just coastal and island communities. Displaced persons, food insecurity, and groundwater salinity are likely to affect much more than the roughly one billion who currently live in low-lying coastal areas.

In an interview with GZERO Media, Dr. Nadya Vinogradova Shiffer — who directs the NASA Sea Level Change Team — offered a simple answer: by using data for “clarity.” Even if someone doesn’t believe they’re sick, a fever doesn’t lie, she told us.

NASA released thisinteractive tool using previous tide gauges to predict future sea level rise scenarios through 2150. Spoiler: It’s not good.

More For You

US President Donald Trump arrives to announce reciprocal tariffs against US trading partners in the Rose Garden of the White House in Washington, DC, USA, on April 2, 2025.
POOL via CNP/INSTARimages.com

From civil conflicts to trade wars to the rise of new technologies, GZERO runs through the stories that have shaped this year in geopolitics.

Ukrainian serviceman walks near apartment buildings damaged by Russian military strike, amid Russia's attack on Ukraine, in the frontline town of Kostiantynivka in Donetsk region, Ukraine December 20, 2025.
Oleg Petrasiuk/Press Service of the 24th King Danylo Separate Mechanized Brigade of the Ukrainian Armed Forces/Handout via REUTERS

Ukrainian intelligence services assassinated a senior Russian general on the streets of Moscow on Monday, detonating a bomb strapped to his car.