Monash University - Science Daily The Sparks fire during an historic heatwave in BC, Canada. A BC Wildfire Service photo June 20-21. The world's largest study of global climate related mortality found deaths related to hot temperatures increased in all regions from 2000 to 2019, indicating that global warming due to climate change will make this mortality figure worse in the future. The international research team looked at mortality and temperature data across the world. Story here.
Showing posts with the label Global heating
During the last days of June 2021, Pacific northwest areas of the U.S. and Canada experienced temperatures never previously observed, with records broken in many places by several degrees Celsius. Multiple cities in the U.S. states of Oregon and Washington and the western provinces of Canada recorded temperatures far above 40ºC (104 ºF), including setting a new all-time Canadian temperature record of 49.6ºC in the village of Lytton. Shortly after setting the record, Lytton was largely destroyed in a wildfire [ 1 , 2 ]. The exceptionally high temperatures led to spikes in sudden deaths, and sharp increases in hospital visits for heat-related illnesses and emergency calls [ 3 , 4 , 5 ]. Heatwaves are one of the deadliest natural hazards and this heatwave affected a population unaccustomed and unprepared for such extreme temperatures, for instance with most homes lacking air-conditioning [ 6 ]. Currently ava
Nature (With minor editing by PinP) One of several steel power pylons toppled in an historic wind, snow and ice storm which swept through eastern Manitoba about a year ago. It left thousands without power in what was described as the worst power outage in the history of Manitoba Hydro. Damages are expected to exceed 100 million dollars. A Manitoba Hydro photo. Even if human-induced greenhouse gas (GHG) emissions can be reduced to zero, global temperatures may continue to rise for centuries afterwards, according to a simulation of the global climate published in Scientific Reports. Jorgen Randers and Ulrich Goluke modelled the effect of different greenhouse gas emission reductions on changes in the global climate from 1850 to 2500. They also created projections of global temperature and sea level rises. What do they show? Under conditions where manmade greenhouse gas emissions peak during the 2030s, then decline to zero by 2100, global temperatures will be 3°C warmer and sea levels 3
ScienceDaily The Athabasca glacier in Jasper National Park, Canada. Already a shadow of its former self, many fear it will be gone altogether within a generation. A 2020 photo by Ethan Sahagun. Nature reserves will be affected by future climate change in very different ways - especially in the tropics. A new study drawing attention to this fact, raises even more fears for wildlife species. It's based on forecasts for more than 130,000 nature reserves worldwide. Story here.
Science Daily A table iceberg in the Norwegian Arctic. Such icebergs are rare as they calve from shelf ice, which is also rare. They're normally a typical form of iceberg in the Antarctic. This one is about 12m high and about half the size of a soccer field. Photo by Andreas Weith. The eastern Arctic Ocean's winter ice grew less than half as much as normal during the past decade, due to the growing influence of heat from the ocean's interior, researchers have found. Story here.
New research finds - global heating is melting vast northern fields of permafrost so fast that - within decades - they'll likely stop cooling the planet as they have for millennia - and start doing just the opposite.
by Larry Powell Permafrost Slide at Big Fox Lake, Ontario, Canada - 2015. A Creative Commons photo by MIKOFOX. For thousands of years, so-called "permafrost peatlands" in Earth's Northern Hemisphere have been cooling the global climate. They’ve done it by trapping large amounts of carbon and nitrogen which would otherwise escape into the air as harmful greenhouse gases. More recently however, scientists have observed, they've been melting due to manmade global heating. As they melt, they're releasing large amounts of substances like methane - a potent greenhouse gas - into the air. But, without proper maps, it's been hard for scientists to get a handle on the degree to which this might be happening - until now. New ones drawn up using thousands of field observations, show; Permafrost peatlands cover a vast area of almost four million square kilometres. And, to quote from the study, "Under future global warming scenarios, half to nearly all
Global death rate from rising temperatures projected to surpass the current death rate of all infectious diseases combined
The Climate Impact Lab A PinP photo. This summer, the world is experiencing record hot temperatures: A weather station in Death Valley, California, clocked one of the hottest temperatures ever observed on Earth. Simultaneously, the coronavirus pandemic’s devastating mortality impact and economic fallout are demanding society prioritize public health like never before. Details here.
The Guardian An emaciated moose in Riding Mtn. National Park, Canada. A PinP photo. All but one of 459 species have traits making them vulnerable to rising temperatures, study finds. Story here. To quote from the initial study in Nature, Climate Change: "Climate change is a threat to ecosystems and biodiversity globally and has emerged as a driver of observed and potential species decline and extinction. Government laws and policies should play a vital role in supporting climate change adaptation for imperilled species, yet imperilled species protections have been critiqued as insufficient in Australia, Canada and Europe." PinP -->
PHYS ORG Flooding in Saskatchewan. A PinP photo. The frequency of downpours of heavy rain—which can lead to flash floods, devastation, and outbreaks of waterborne disease—has increased across the globe in the past 50 years, research led by the University of Saskatchewan (USask) has found. Story here.