Boston e grande parte dos Estados Unidos enfrentam uma forte onda de frio em janeiro de 2026: perturbações na corrente de jato atuaram em conjunto para criar condições favoráveis para tempestades e clima extremo Craig F. Walker/The Boston Globe via Getty Images

Como o vórtice polar e um oceano mais quente intensificaram a grande tempestade de inverno que atinge os EUA

A atmosfera complicada, e temperaturas quentes em um local podem contribuir para tempestades brutalmente frias em outro lugar.
Visitors walk past a sign reading ‘Stop: Extreme Heat Danger’ in Death Valley National Park during a heat wave on July 7, 2024. Etienne Laurent/AFP via Getty Images

Extreme heat is breaking global records: Why this isn’t ‘just summer,’ and what climate change has to do with it

Global temperatures have averaged at least 1.5 degrees Celsius warmer than preindustrial times for over a year. Two scientists explain what that means and what humanity can do.
Temperatures in normally warm Texas plunged into the teens in February 2021, knocking out power for a population unaccustomed to cold, with deadly consequences. Thomas Shea / AFP via Getty Images

How Arctic warming can trigger extreme cold waves like the Texas freeze – a new study makes the connection

Counter to what you might expect, events like the February cold wave that froze Texas can actually become more likely with global warming.

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