9 November, 2017

“Because the ocean” – achieving the Paris Agreement 1.5°C temperature limit

Ocean systems are particularly vulnerable to climate change, and there is already clear evidence for loss and damage inflicted by climate change on ocean systems. This briefing provides an overview of the latest science on key risks for ocean systems including from sea-level rise, ocean acidification and impacts on coral reefs and other marine and coastal ecosystems.

The analysis underscores the need to limit warming below 1.5°C to limit impacts on ocean systems. Exceeding that warming level will fundamentally affect ocean systems and undermine any other attempts to protect them.

Limiting warming to 1.5°C is of paramount importance for future ocean pathways. This means that the most urgent step to protect oceans is to reduce CO2 and other greenhouse gas emissions in line with what is needed to meet the Paris Agreement 1.5°C limit.