MPs are spending their first day back after Thanksgiving break debating the perils of climate change.
The emergency debate, to take place this evening, was granted by House of Commons Speaker Geoffrey Regan just a week after the United Nations climate change arm dropped an explosive warning.
It bluntly said the world is on the precipice of major disasters if governments don't step up with a firmer plan to stop spewing so many greenhouse gases into the atmosphere.
The world has already warmed up about 1 C compared to the mid-19th century, and is experiencing the effects of that including bigger storms, more frequent flooding, longer droughts and more forest fires.
Each 0.5 C degree of warming raises those risks significantly, with entire ecosystems possibly being eradicated, parts of the planet becoming too hot to sustain life and island nations getting drowned out entirely by rising sea levels.
The report says the world needs to aim to stop the warming at 1.5 C but that marker will be upon us by 2040 if drastic, global action isn't taken.