What does it mean that 2023 had the warmest sea surface temperatures on record?
It means that, according to the Copernicus Climate Change Service (C3S), the average temperatures of the ocean’s surface across the globe in 2023 were higher than any other year since records have been kept.
Why are sea surface temperatures important?
Sea surface temperatures (SSTs) are critical because they influence weather patterns, including rainfall, snowfall, and cyclones. They also affect marine life, which can have further implications for human food sources.
How much higher were the sea surface temperatures in 2023?
The SSTs in 2023 were 0.56°C above the 1971-2000 baseline, which is a significant increase and indicates a continuing trend of global warming.
What is La Niña and how does it relate to SSTs?
La Niña is a climate pattern that typically results in cooler ocean temperatures in the equatorial Pacific. However, in 2023, despite the ending of a La Niña cycle, record high SSTs were still recorded.
What are the consequences of higher SSTs?
Higher SSTs can lead to more intense and frequent extreme weather events and can disrupt the migration and survival patterns of marine life. This can have cascading effects on ecosystems and human societies, particularly in coastal regions.
What might be causing the increase in SSTs?
Generally, SSTs are increasing due to human-induced climate change, primarily the result of increased greenhouse gas emissions that trap heat in the atmosphere and oceans.
What can be done to address rising SSTs?
Addressing rising SSTs involves global efforts to reduce greenhouse gas emissions, protect and restore marine ecosystems, and transition to renewable energy sources. International cooperation and policy measures aligned with climate science are essential steps in this direction.
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