Smoke cloud from Australian summer’s bushfires three-times larger than anything previously recorded

Cloud measured 1,000km across, travelled 66,000km and was on par with strongest volcanic eruptions in the past 25 years', scientists say

Smoke cloud pushed into the stratosphere by last summer's bushfire crisis was three times larger than anything previously recorded globally, according to research by international scientists.

Researchers from Canada's University of Saskatchewan used Nasa satellite information to measure smoke in the upper atmosphere in the aftermath of pyrocumulonimbus storms (PyroCBs), which are fire-generated thunderstorms.