Excellent And Terrifying Data Journalism: The Interactive Climate Change Calculator

In December 2015, an unprecedented multinational agreement on climate change was reached in Paris. Its primary target is to hold "the increase in the global average temperature to well below 2 °C above pre-industrial levels", while trying to keep it under 1.5 ºC. The deal, which has been signed by almost all of the world's countries, sets individual targets for each nation, based on their current development, emissions and possibilities.

Reaching such a comprehensive agreement may have been hard for the world's governments, but the tricky part has not even started. Now they have to stick to their word and actually do something to reduce the emissions. We all have to. And that's where the agreement's main flaw shines: it lacks an enforcement mechanism. It depends on goodwill. And that's already hard enough without a climate change denier sitting at the Oval Office.

This fantastic (and free) calculator from the FT pulls no punches. It has two modes, which you can switch on the top right corner, and both are greatly educative. The default is a narrative mode that takes you, step by step, through current pledges and into climate havoc. The second is a free editor that lets you introduce unrealistic expectations and somehow hope that they will be met.

So go on, play. Twinkle with the biggest emitters' pledges – which are already insufficient, as you will see. Understand what needs to be done to avoid disaster. See where we are going. Be terrified. Get depressed.

Or realise the urgency of the matter and die with your boots on.