Britain is an island, and Wales is a coastal nation, with around 60% of our population living within 5km of the coast. Climate Central is a resource which shows how much of the coast would be lost to the sea with a rising ocean - take a look at your neighbourhood and see whether you’re at risk. Globally, 900,000,000 people are said to be at risk in coastal zones with low elevation - that’s 1 out of every ten people on earth, and would cause a mass refugee crisis. For the UK specifically, warmer, wetter summers may make growing some crops easier, and others harder. Cardiff was reported in 2022 as Britain’s most at risk city for climate change related flooding

The ocean is an essential store for carbon - unfortunately when carbon is absorbed into seawater (currently the ocean absorbs around 25% of human-produced CO2), it forms carbonic acid, making the ocean itself more acidic, depleting oxygen and affecting ocean currents. .