This quiz is a partnership between CNN.com/2degrees and Climate Central.

There’s one goal of international climate change negotiations: Stop warming short of 2 degrees C. At 2 degrees of warming, low-lying island nations are expected to be underwaterdroughts and storms will become supercharged, and a third of species may be put at risk for extinction. Not to mention the increased risk of deadly heatwaves. It’s a dangerous threshold, one world leaders agree we don’t want to cross.

Reader support helps sustain our work. Donate today to keep our climate news free.

But what will it take? Answer the questions below to see if you can beat the 2-degree target. If you succeed, the thermometer at right will turn green. If it stays red? Well, let’s just say your grandchildren likely won’t be thanking you.

[protected-iframe id=”bfa29342b0a3de1cfc54cdf1c113fff0-5104299-30178935″ info=”http://www.cnn.com/interactive/2015/11/opinion/climate-calculator/embed.html?cnnApp&utm_source=cc&utm_medium=embed&utm_campaign=2C-Challenge” width=”660″ height=”1000″ frameborder=”0″ scrolling=”yes”]

Grist thanks its sponsors. Become one.