World’s oceans experience hottest June ever, scientists say more heat ahead
GS3Economy · S&T · Environment · Security· Climate change & international agreements· Prelims·
Why in news
The Copernicus Marine Service reported that June 2023 recorded the hottest global sea surface temperatures ever, signaling a potential new phase of ocean warming driven by El Niño and climate change.
Background
The Copernicus Marine Service (EU) recorded a global sea surface temperature of 21.0 degrees Celsius (69.8 degrees Fahrenheit) in June 2023. This represents the warmest June on record, attributed to the synergistic effects of the El Niño phenomenon and anthropogenic climate change.
Facts for Prelims
- FactJune 2023 recorded a global sea surface temperature of 21.0 degrees Celsius.
- BodyCopernicus Marine Service is a component of the European Union's Copernicus programme.
- S&TEl Niño is a climate pattern characterized by the warming of surface waters in the eastern tropical Pacific Ocean.
For Mains
Q. Discuss how rising global sea surface temperatures impact marine biodiversity and coastal ecosystems, and evaluate the role of international cooperation in mitigating ocean warming.
Dimensions to cover in your answer
- Ecological disruption: Thermal stress leading to coral bleaching and mass mortality of marine species.
- Feedback loops: Increased ocean heat content accelerating atmospheric warming and intensifying extreme weather events.
- Geopolitical risk: Rising sea levels and coastal erosion threatening low-lying island nations and coastal infrastructure.
Keywords: Anthropogenic climate change · El Niño · Marine biodiversity · Thermal expansion · Oceanic warming
More Environment & Ecology notes
- Indian cities face significant temperature rise due to Urban Heat Island effect · 8 July 2026
- Sacred Groves: Predator Havens, Outperforming Plantations in Biodiversity · 4 July 2026
- Ladakh deploys 100 ex-armymen to curb eco violations, fine tourists ₹2 lakh · 4 July 2026
- Antarctica is missing 2 million sq km of sea ice, scientists say the impact may reach far beyond the frozen continent · 4 July 2026
- UPSC Key: Tiger Reserves restoration, FDC drugs, and US turns 250 · 4 July 2026
- El Niño to Intensify, Threatening India with Drought and Heatwaves · 4 July 2026
This note is generated automatically from SatyaDheesh's news feed and mapped to the UPSC CSE syllabus. Check facts against the original report or PIB before using them in an answer.