Drawn from almost 7,000 papers by over 100 leading climate scientists, the IPCC report represents the most comprehensive assessment to date of the severity of climate impacts on our oceans and the cryosphere (frozen areas of the Earth).
Taehyun Park, global climate political advisor with Greenpeace East Asia, said:
“The science is both chilling and compelling. The impacts of human-made carbon emissions on our oceans are on a much larger scale and happening way faster than predicted. It will require unprecedented political action to prevent the most severe consequences to our planet.
“Climate action and building the resilience of our oceans need to go hand in hand and governments and industry know the solutions. They must take decisive steps to ditch fossil fuels and submit their national plans to stay below 1.5℃ by next year, when they will also need to deliver a strong Global Ocean Treaty capable of protecting at least 30% of the world’s oceans as marine sanctuaries.”
The IPCC report points to some potentially irreversible changes and growing threats to the Earth’s oceans and shrinking cryosphere. It comes as Arctic sea ice levels reached their second lowest level on satellite record – some 2.1 million Km2 below the average long term minimum area.
The IPCC also presents policy solutions to help governments mitigate the worst impacts of global warming and build climate resilience. It points to the challenges of oceans and cryosphere governance systems, which remain fragmented across administrative boundaries and sectors and fail to provide effective ocean protection.
Oceans campaigner, Chris Thorne with Greenpeace UK, said:
“World leaders at the UNSG Climate Action Summit this week pretended to care, but unless words translate into more ambitious commitments to address the climate emergency and forge a strong Global Ocean Treaty, they are failing the millions of climate strikers around the world who came out onto the streets demanding radical change.
“The IPCC report is another wake-up call for those governments who continue to sleepwalk through the climate crisis. The decisions that world leaders choose to make in the next few years will have profound consequences for the future of humanity in the coming centuries.”
In other findings, the IPCC report found:
- That sea-level rise by 2100 could be close to one metre if global warming exceeds 3°C, which is where the current global government policies are heading to. This could result in the displacement of millions of people from coastal areas.
- As sea surface temperatures increase and as oceans become more acidic, marine life and ocean ecosystems will suffer major challenges. Even if global warming is limited to the agreed target of 1.5°C, it is projected that up to 90% of warm water coral reefs will be lost.
- Widespread permafrost thaw is projected for this century. Arctic and Sub-Arctic Permafrost contains 1460-1600 Gigatons of organic carbon, equivalent to almost twice the carbon currently in the atmosphere.
- By the end of this century, the frequency of marine heatwaves could increase 50-fold (under temperature increases of 3-5℃) compared with the end of the 19th century.
Photos can be accessed here
Greenpeace International has produced a detailed media briefing analysing the IPCC’s findings. This briefing can be found here.
The National Snow and Ice Data Center has just called the Arctic Sea Ice Minimum extent for 2019. It is 4.15 million square kilometers (1.6 million square miles).
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