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The natural world. Looking pretty for 3.5b years.

Global Weirding Report

Global Weirding Report

Author: Hugh Bollinger/Friday, August 31, 2018/Categories: video, space science, sustainability, environment, climate change

   Scandinavian Heatwave Forcast, 8-30-2018 to 9-2-2018 (credit: Severe Weather Europe)

Extreme weather events have occurred across multiple continents the past month: massive fires in California; catastrophic floods in India; an extended heatwave across all of Scandinavia stretching above the Arctic Circle; to the worst drought (The Big Dry) in Australia's history, are just a few examples. More weather records are expected to be broken as severe thunderstorms and torrential rainfall are predicted for Italy, Slovenia, Austria, and Croatia in the coming days.

 

All climate change models predict weather events will be amplified by the effects of a warming climate. A warmer atmosphere increases the number of extremely hot days and nights while also enabled to carry increased moisture in the air. This can result in more frequent torrential downpours, heavier snowfall, and also can lead to higher evaporation that can amplify drought conditions. All of these 'climate signals' were on display this month.

The emerging field of attribution science tries to determine the degree of climate change impact or "attribution" can be quantified to an extreme weather event. The tools are becoming more precise with every new extreme data-point is added to the predictive models. Climate change estimates once predicted for the mid-21st Century and now unfolding today.

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