Ocean temperatures hit record levels, impacting marine life
The world's oceans have set daily temperature records throughout the past year due to climate change.
Matt McGrath, Mark Poynting, and Justin Rowlatt report for BBC News.
In short:
- Ocean surface temperatures have consistently exceeded long-term averages, with recent peaks causing extensive coral bleaching.
- The elevated temperatures are largely driven by human-produced greenhouse gases, though the El Niño phenomenon has intensified the effects.
- Marine species are experiencing dramatic shifts in their environments, impacting biodiversity and ecological balance.
Key quote:
"The fact that all this heat is going into the ocean, and it's warming in some respects even more rapidly than we thought it would, is a cause for great concern."
— Prof Mike Meredith, British Antarctic Survey
Why this matters:
For marine life, the increase in water temperature can disrupt species' migration patterns, breeding cycles, and food sources. Coral reefs, often referred to as the rainforests of the sea due to their rich biodiversity, are particularly vulnerable. They suffer from bleaching events that strip them of their color and life as the algae—vital for their survival—are expelled.
