Explainers

Sea levels around the world are rising because of climate change, as warming ocean waters and melting ice cause the oceans to encroach on the world's coasts.

Coastal ecosystems, formed by plants that can thrive in saltwater, are especially good at storing carbon because of the thick, rich layers of soil they build up.

Cities concentrate people into small areas for good reason, but this makes them major sources of greenhouse gases and uniquely vulnerable to climate risks.

Aviation emissions are responsible for around 5% of climate warming, and this share is rising.

Carbon pricing is a policy tool to lower emissions of carbon dioxide and other greenhouse gases, by putting a tax or other price on them.