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Showing posts with label snow. Show all posts
Showing posts with label snow. Show all posts

Friday, August 30, 2024

Australia experiences record breaking winter heatwave; Rapid snow season decline; Global Snapshot of news reveals climate crisis extent

Australia experiencing a late winter season  heatwave breaking temperature recotds.

Australia is in the grip of a late winter season heatwave with temperature records falling across most states. Southern States are experiencing storm fronts with strong winds some times in excess of 100km/hr.

Australia: late Winter #heatwave temperature records broken for Queensland, New South Wales, Northern Territory and South Australia. In Qld, Birdsville’s running maximum temperature at 3:30pm AEST on Friday was 39.6°C. This is roughly 15°C above average for this time of year and Qld’s highest winter temperature on record. (Weatherzone)

Sydney Airport has broken its winter record of 31.1°C this Friday, reaching 31.6°C at 2:48pm. In August 2024 to date, Sydney's running average maximum has been 21°C, some 3.1 above the long-term average. (Weatherzone)

In Queensland, Rental advocates warn heat-related deaths will increase if Queensland regulations aren't tightened. The ABC News report summarises that:

  • Parts of Queensland are predicted to see a record-breaking 36-degree end to winter.
  • Advocates want efficiency regulations to protect renters and public housing tenants.
  • The state government says their reforms have made renting fairer and lifted housing standards.
  • See associated VIDEO: Growing risk of heat-related deaths as Queensland temperatures soar

See climatologist Andrew King explain at the Conversation, published 26 August 2024: 40°C in August? A climate expert explains why Australia is ridiculously hot right now

Saturday, December 2, 2023

Cryosphere in peril: Calls by Scientists, President of Chile, Prime Minister of Iceland, UN Chief to phase out Fossil Fuels at COP28

Before attending COP28 in Dubai, UN Secretary General Antonio Guterres did a flying vist to Antarctica with Gabriel Boric, President of Chile, to see and talk with polar scientists on the changes to the Cryosphere and Antarctica in particular.

 "What happens in Antarctica doesn’t stay in Antarctica. " Guterres said.

"Without changing course, we’re heading towards a calamitous three-degree Celsius temperature rise by the end of the century. That means losing the West Antarctica Ice Sheet almost entirely. This alone could ultimately push up sea levels by around five meters." said the UN Chief.

The International Cryosphere Climate Initiative published its latest State of the Cryosphere report 2023 on 16 November 2023, outlining in 6 detailed chapters covering the changes and impacts of Ice Sheets, Mountain Glaciers and Snow, Sea Ice, Permafrost and Polar Oceans. The report included a forward by the President of Chile and Prime Minister of Iceland calling for a phaseout of fossil fuels to limit damages to the cryosphere, and consideration of the issue in the Global Stocktake at COP28. 

Saturday, July 9, 2011

Warming Arctic air temperatures causing less snow, more rain, faster ice melt

Arctic air temperatures are warming faster than anywhere else on Earth. Although the level of precipitation is remaining unchanged, there is reduced snowfall in summer which is being replaced by increasing rain. The loss of summer snow and increase in rain is resulting in a positive feedback mechanism increasing warming and melting of the Arctic ice.

We are already witnessing an increase in the Albedo feedback mechanism - loss of reflectivity in the arctic leading to more warming and greater ice melt. Research published early in 2011 revealed Loss of reflectivity in the Arctic is double the estimate used in climate models. With the change in precipitation we have a further feedback mechanism contributing to Arctic warming and melting of snow and sea ice.