The article is from America and it lists several ways you can lower your carbon emissions — but no subsidy in Oz for replacing your gas guzzler!
by Washington Post Staff, 22/02/2022 in the Washington Post Climate Solutions 10 steps you can take to lower your carbon footprint: Small changes alone won’t stop climate change, but your actions are still worthwhile.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Over the past year, the world has experienced severe heatwaves, wildfires, and drought. As global temperature continues to creep upwards, these events will become more frequent and more extreme. Obviously, humanity needs to make a concerted effort to rapidly bring down greenhouse gas emissions to limit warming to 1.5-2 degrees Celsius above pre-industrial levels, as global leaders agreed to do when they signed the Paris Agreement.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
The rising sea-level has two sources: runoff from the land (mostly glacial melt water) and thermal expansion of the ocean itself due to warming from excess solar energy accumulating from the global warming process.
Sourced from East Coast flooding is a reminder that sea level is rising as the climate warms – here’s why the ocean is pouring in more often – by Jianjun Lin, 07/11/2021 in the Conversation.
The melt water in the rising sea-level comes from two primary sources, melting glaciers and ice cap on Greenland that has increased 6-fold over the last couple of decades; and melting glaciers and ice cap on Antarctica which has more than doubled over the same time. This is measured by the loss of mass variable – representing the weight of the water that has been added to the oceans.
As described in the feature article below, the melting rate of a glacier is determined by its speed as it is creeping/sliding down the continental slope into the ocean. This in turn is determined by a complex set of interacting factors, e.g., temperature, angle of slope, width and roughness of the bed, how much meltwater is in the bed to lubricate/float the ice, where and how the ice may crack and crumble, how many bends there are in the valley, ocean conditions at the foot, whether and to what extent warm and salty (salt lowers the melting temperature of ice) ocean water penetrates into the glacier bed under its foot, thickness and extent of the floating ice shelf at the glacier’s foot and so on. Simply stated, melt rates are inherently unpredictable. However, one thing we can be sure of is that the melt rate will speed up as ambient temperatures increase the rate of ice melting, and rain replaces snow as the main form of precipitation.
The geological record provides good evidence that episodes of abrupt ice melting can cause raise sea-levels a lot faster than they are now, perhaps even showing large changes in rate over a few decades.
See Wikipedia: Meltwater pulse 1A: Meltwater pulse 1A (MWP1a) is the name used by Quaternarygeologists, paleoclimatologists, and oceanographers for a period of rapid post-glacialsea level rise, between 13,500 and 14,700 years ago, during which global sea level rose between 16 meters (52 ft) and 25 meters (82 ft) in about 400–500 years, giving mean rates of roughly 40–60 mm (0.13–0.20 ft)/yr…. This rate of sea level rise was much larger than the rate of current sea level rise, which has been estimated to be in the region of 2–3 mm (0.0066–0.0098 ft)/yr.
There may well be enough ice in the West Antarctic Ice Sheet — especially if combined with an equally rapid melting of the Greenland Ice Sheet to support an equivalent amount of melting to the Meltwater Pulse 1A. It is notable that the land surface underlying very large areas of both West Antarctica and Greenland are below sea level – giving ample opportunities for warm ocean water to help speed the melting and collapse of the ice sheets.
Glacier front meets the sea
Why Melting Ice in Antarctica is Making Waves: Scientists recently discovered that the Thwaites Ice Shelf, a floating ice shelf that supports the Florida-sized Thwaites Glacier, could collapse in as little as five years because of global warming.
Climate Reality Project, 28/01/2022
This past December, the massive Thwaites Glacier in Western Antarctica made headlines for all the wrong reasons. Specifically, because new research revealed that the ice shelf preventing it from sliding into the ocean and drastically raising sea levels could collapse well within the next decade.
This Florida-sized glacier had already worried experts for years, going as far as to regularly be called the “Doomsday Glacier”. And yet, this update from the scientific community was still groundbreaking.
It’s news that the world — particularly low-lying island and coastal communities — should understand and act on. So, what exactly is Thwaites Glacier, what does the latest research about it say, and what consequences could come from its decline?
FIRST THINGS FIRST, WHAT IS THWAITES GLACIER?
Thwaites Glacier is a massive body of dense ice located in Western Antarctica. Measuring about 80 miles (120 km) across, it’s the widest glacier on Earth.
Thwaites Glacier in Western Antarctica. Credit: NASA
The glacier has an ice shelf — a permanent piece of floating ice connected to it — that branches out into the Amundsen Sea. Now, understanding what exactly an ice shelf does is crucial.
Read the complete article….
As long as the world continues to warm and large amounts of snow and ice remain lying on the land, sea levels will continue to rise. The risk of an abrupt sea-level rise is real. The human and economic costs of such an event would be catastrophic if it happens. It therefore makes very good sense that mitigation works should begin soon with planning in place at federal, state and local levels to accelerate the work if we have any clear early warning signs that abrupt melting is actually beginning.
Captain Humbug (A.K.A. Scotty from Marketing) showing the parliamentary puppet troop what it is all about behind his then PM, ““Don’t be afraid, don’t be scared, it won’t hurt you. It’s coal.” With these words Australia’s Treasurer Scott Morrison taunted the Opposition, attempting to ridicule its commitment to renewable energy.” – Picture from The Conversation (15-02-2017). See also Katherine Murphy in The Guardian on 09/02/2017 for the live video — “Scott Morrison brings coal to question time: what fresh idiocy is this? What a bunch of clowns, hamming it up – while out in the real world an ominous and oppressive heat just won’t let up.”
Also, from the official transcript dated 20/12/2019 from the PM’s own office, Scotty made it abundantly clear to John Stanley on 2GB Radio that HE doesn’t fight fires… “But I know Australians understand… that, you know, I don’t hold a hose, mate, and I don’t sit in a control room. That’s the brave people who do that are doing that job. But I know that Australians would want me back at this time out of these fatalities. So I’ll happily come back [from his secret holiday in Hawaii] and do that.”
Sixteen year-old Greta tells us and everyone at the 2019 World Economic Forum in Davos how we and our governments should actually respond to the climate emergency:
Listen to Greta’s speech live. Except for her reliance on the IPCC’s overoptimistic emissions budget, everything she says is spot on that even she, as a child, can understand.
In other words, smell the smoke, see the reality, and fight the fire that is burning up our only planet so we can give our offspring a hopeful future. This is the only issue that matters. All Capt. Humbug and his troop of wooden-headed puppets are doing is rearranging the furniture in the burning house to be incinerated along with anything else we may care about. In Greta’s words, “even a small child can understand [this]”. People hope for their children’s futures. She doesn’t want your hope. She wants you to panic enough to wake up and fight the fire…. so she can have some hope for her future. Vote Climate One’s Traffic Light Voting System will help you use your vote wisely on behalf of our offsprings’ futures.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
Record high mid-winter temps from 28 to 31 °C and wildfires hit Southern California suggesting drought may continue for another year
By Jan Wesner Childs 11/02/2020 in The Weather Channel: Homes Burned, Evacuations Ordered Amid Southern California Wildfires: Southern California is experiencing unusually hot weather, combined with Santa Ana winds and an ongoing drought. Temperatures soared into the mid- to upper 80s in some areas Thursday with daily record highs noted by the National Weather Service in Ventura, Santa Barbara, San Luis Obispo and Los Angeles counties.
See also: By Madeline Scheinost 09/02/2022 in The Weather Channel Does California’s Dry Start to 2022 Mean the Drought Is Locked in Until Next Winter?: California started the year with a dent in a multi-year drought thanks to a wet December, but a dry spell to start the year threatens to counteract the progress that was made and prolong the drought well into 2022.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
ANU experts say continuing climate change increases bushfire threats of more than ‘worst case’ scenarios to never before (NB4) seen levels
by Michael Mazengarb 10/02/2022 in Renew Economy Australia’s bushfire threat already beyond worst-case scenarios, thanks to climate change: Australia will continue to experience more extreme impacts of climate change, with the bushfire threat already exceeding the ‘worst case’ scenarios, experts have told the Australian National University’s 2022 Climate Update event.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
ANU experts say continuing climate change increases bushfire threats of more than ‘worst case’ scenarios to never before (NB4) seen levels
by Michael Mazengarb 10/02/2022 in Renew Economy Australia’s bushfire threat already beyond worst-case scenarios, thanks to climate change: Australia will continue to experience more extreme impacts of climate change, with the bushfire threat already exceeding the ‘worst case’ scenarios, experts have told the Australian National University’s 2022 Climate Update event.
Views expressed in this post are those of its author(s), not necessarily all Vote Climate One members.
