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Why Were 2023 and 2024 So Hot?

Union of Concerned Scientists

According to recent data from NOAAs National Center for Environmental Information, 2024 is likely to be even warmer than 2023. But why were 2023 and 2024 so warm? In that year, El Nio added to the increased warming caused by the build-up of heat-trapping emissions in the atmosphere, leading to that record-breaking heat.

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A Grim Signal: Atmospheric CO2 Soared in 2024

Inside Climate News

By Bob Berwyn The latest anomaly in the climate system that cant be fully explained by researchers is a record annual jump in the global mean concentration of carbon dioxide in the atmosphere measured in 2024.

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Arctic Report Card 2024: How Did the Region Fare? Ask the Caribou

Union of Concerned Scientists

For the first time, the Arctic Report Card assessed that the Arctic is faltering as a reliable area for storing carbon away from the atmosphere ( Natalie et al., It was its first failing grade after thousands of years holding onto more carbon than released to the atmosphere. in Arc2024 ). Methane releases were sustained as well.

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Twenty years of blogging in hindsight

Real Climate

It shows the atmospheric concentrations of carbon dioxide (CO 2 ) and tells a story about the carbon cycle, involving Earth’s crust, the atmosphere, land surface, the biosphere, and the oceans. The Keeling curve, highlighted with the release of important climate reports and climate summits. Lussana, and A.

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We need NOAA now more than ever

Real Climate

Guest commentary by Robert Hart, Kerry Emanuel , & Lance Bosart The National Weather Service (NWS) and its parent agency, the National Oceanic and Atmospheric Administration (NOAA), delivers remarkable value to the taxpayers. American Meteorological Society Policy Program Study, September 2024.

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WMO: Update on 2023/4 Anomalies

Real Climate

since the 1850-1900 baseline is very clearly associated with the increases in greenhouse gases, slightly (and decreasingly) modulated by the changes in atmospheric pollution. There is always something of course – the weather is variable – but for 2023 and 2024 the residuals were higher than for any other year in decades.

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Danger Season 2024: It’s Already Started

Union of Concerned Scientists

Ahead of Memorial Day, the unofficial kick-off of summer, we are back with an annual warning that gets more pointed each year: it is now Danger Season 2024, and everyone needs to be ready. The first few months of 2024 have seen the continued march of record global heat conditions. Because the hits are coming, and they’re going to hurt.

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