The Decline in Sea Ice

We’ve all seen the graph of carbon dioxide concentrations going back thousands of years, with a sudden shot up starting in the 20th century. Here it is again, though, just in case.

carbon dioxide concentrations

Our atmospheric concentration of CO2 gets the lion’s share of attention because our increased concentration of greenhouse gases like CO2 causes more heat to be trapped by the atmosphere. There’s also a sharp decline in summer ice in the Arctic over a thousand-year average, shown below.

sea ice

On average, the Arctic has lost over two million square meters of ice extent—that’s an area the size of Greenland or Mexico! And the losses are speeding up. NASA’s latest data set shows we’re losing ice at about 12.8% per decade. Sadly, multiple studies have predicted that the Arctic is trending towards an ice-free summer around the middle of the century.

We invite you to take action and help us restore the Arctic ice and polar habitat.