First reported by bsky
World's oceans record hottest June temperatures as El Niño amplifies warming
Global ocean surface temperatures reach record high on June 21, surpassing 2023 and 2024 levels
By
Chantal Da Silva
6d ago· 4 min readenNews
Summary
Global ocean surface temperatures outside polar regions hit record levels on June 21, 2025, surpassing previous highs set in 2023 and 2024. The Copernicus Climate Change Service recorded 20.86°C (69.54°F), while the Copernicus Marine Service measured 21°C (69°F). Scientists attribute the warming to greenhouse gas emissions from fossil fuel burning, continuing a troubling trend of ocean heat accumulation.
Source
bskyGlobal ocean surface temperatures reach record high on June 21, surpassing 2023 and 2024 levelsnbcnews.comKey quotes
· 3 pulledGlobal ocean temperatures outside the polar regions hit record levels on June 21, surpassing levels for the time of the year observed in both 2023 and 2024.
Temperatures reached 20.86 degrees Celsius (69.54 degrees Fahrenheit) that day, climbing above the 20.83 C (69.49 F) observed in 2023 and 2024.
The planet is warming because we're emitting vast quantities of greenhouse gases, primarily from fossil fuel burning.
“The planet is warming because we’re emitting vast quantities of greenhouse gases, primarily from fossil fuel burning,” one expert said.
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