Showing posts with label two months. Show all posts
Showing posts with label two months. Show all posts

04 August, 2019

Siberian Wildfires and Heatwaves in Alaska: How the Arctic Is Nearing a Point of No Return

Many of the globe’s far northern regions have been experiencing extreme weather events over the past two months. Plumes of smoke have been picked up by satellites from wildfires across Alaska and Siberia and Greenland has experienced rapid ice loss as usually frigid regions have experienced heatwaves and record temperatures.
Smoke rises from a wildfire on July 3, 2019 south
of Talkeetna, Alaska near the George Parks Highway.
 Alaska is bracing for a dangerous fire season with
record warm temperatures and dry conditions in parts of the state.
 
As the Arctic faces extreme weather events caused by climate change, the events could have ripple effects that accelerate temperature increases across the world, according to scientists and experts.

“The basic chemistry and the basic physics of how the atmosphere absorbs heat — there’s no path where you can imagine that the Arctic is going to start to cool off again,” says Brian Brettschneider, a climatologist and post doctoral fellow at the International Arctic Research Center at the University of Alaska Fairbanks.

“Cold air has to come from somewhere, cold air doesn’t just magically appear, and that somewhere has to be accounted for in the entire energy balance of the Earth. Right now the whole Earth has just warmed up,” Brettschneider tells TIME. “It would take a dramatic reversal of the chemical composition of the atmosphere.”


19 February, 2018

Cattle on the move as graziers give up on wet season in drought-stricken Queensland

There is an exodus of cattle leaving drought-stricken parts of western Queensland as graziers give up on seeing a wet season, two months before the rains are usually due to finish.
Mr Elliott waters his horses at sunset while out on the road, north of Winton.
Richard Simpson, 55, a stock agent in Longreach with 30 years' experience in the region, describes his client base as mature — with one grazier aged in his mid-80s.

Mr Simpson said neither of them had seen the region facing a total destocking of sheep and cattle as it was now.

"This region will be destocked ... I reckon you can put a zero on it — probably the worst you want to see," Mr Simpson said.

He predicted if there was no rain by the end of the summer, all cattle in the region would have been moved out and sheep would follow in the winter.