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DoomsdaysCWThe smoke from <a href="https://kolektiva.social/tags/Canada" class="mention hashtag" rel="nofollow noopener" target="_blank">#Canada</a>’s <a href="https://kolektiva.social/tags/wildfires" class="mention hashtag" rel="nofollow noopener" target="_blank">#wildfires</a> may be even more <a href="https://kolektiva.social/tags/toxic" class="mention hashtag" rel="nofollow noopener" target="_blank">#toxic</a> than usualA legacy of <a href="https://kolektiva.social/tags/mining" class="mention hashtag" rel="nofollow noopener" target="_blank">#mining</a> means that <a href="https://kolektiva.social/tags/ToxicMetals" class="mention hashtag" rel="nofollow noopener" target="_blank">#ToxicMetals</a> could be carried along plumes of smoke. by Matt Simon, June 5, 2025"More than 200 wildfires are blazing across central and western Canada, half of which are out of control because they’re so hard for crews to access, forcing 27,000 people to evacuate. Even those nowhere near the wildfires are suffering as smoke swirls around Canada and wafts south, creating hazardous air quality all over the midwestern and eastern parts of the United States. The smoke is even reaching Europe."As the climate changes, the far north is drying and warming, which means wildfires are getting bigger and more intense. The area burned in Canada is now the second largest on record for this time of year, trailing behind the brutal wildfire season of 2023. That year, the amount of <a href="https://kolektiva.social/tags/carbon" class="mention hashtag" rel="nofollow noopener" target="_blank">#carbon</a> blazed into the atmosphere was about three times the country’s <a href="https://kolektiva.social/tags/FossilFuel" class="mention hashtag" rel="nofollow noopener" target="_blank">#FossilFuel</a> emissions. And the more carbon that’s emitted from wildfires — in Canada and elsewhere — the faster the <a href="https://kolektiva.social/tags/PlanetaryWarming" class="mention hashtag" rel="nofollow noopener" target="_blank">#PlanetaryWarming</a>, and the worse the fires. " 'There’s obviously the <a href="https://kolektiva.social/tags/ClimateFeedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateFeedback</a> concern,' said Mike Waddington, an environmental scientist at McMaster University in Ontario who studies Canada’s forests. 'But increasingly we’re also concerned about the smoke.'"That’s because there’s much more to wildfire smoke than charred sticks and leaves, especially where these blazes are burning in Canada. The country’s <a href="https://kolektiva.social/tags/forests" class="mention hashtag" rel="nofollow noopener" target="_blank">#forests</a> have long been <a href="https://kolektiva.social/tags/mined" class="mention hashtag" rel="nofollow noopener" target="_blank">#mined</a>, operations that loaded <a href="https://kolektiva.social/tags/soils" class="mention hashtag" rel="nofollow noopener" target="_blank">#soils</a> and <a href="https://kolektiva.social/tags/waterways" class="mention hashtag" rel="nofollow noopener" target="_blank">#waterways</a> with <a href="https://kolektiva.social/tags/ToxicMetals" class="mention hashtag" rel="nofollow noopener" target="_blank">#ToxicMetals</a> like <a href="https://kolektiva.social/tags/lead" class="mention hashtag" rel="nofollow noopener" target="_blank">#lead</a> and <a href="https://kolektiva.social/tags/mercury" class="mention hashtag" rel="nofollow noopener" target="_blank">#mercury</a>, especially before clean-air standards kicked in 50 years ago. Now everyone downwind of these wildfires may have to contend with that legacy and those pollutants, in addition to all the other nasties inherent in <a href="https://kolektiva.social/tags/WildfireSmoke" class="mention hashtag" rel="nofollow noopener" target="_blank">#WildfireSmoke</a>, which are known to exacerbate respiratory and cardiac problems. " 'You have there the burning of these organic soils resulting in a lot of carbon and a lot of <a href="https://kolektiva.social/tags/ParticulateMatter" class="mention hashtag" rel="nofollow noopener" target="_blank">#ParticulateMatter</a>,' said Waddington. 'Now you have this triple whammy, where you have the metals <a href="https://kolektiva.social/tags/remobilized" class="mention hashtag" rel="nofollow noopener" target="_blank">#remobilized</a> in addition to that.'"What exactly is lurking in the smoke from Canadian wildfires will require further testing by scientists. But an area of particular concern is around the mining city of <a href="https://kolektiva.social/tags/FlinFlon" class="mention hashtag" rel="nofollow noopener" target="_blank">#FlinFlon</a>, in <a href="https://kolektiva.social/tags/ManitobaCanada" class="mention hashtag" rel="nofollow noopener" target="_blank">#ManitobaCanada</a>, which is known to have elevated levels of toxic metals in the landscape, said Colin McCarter, an environmental scientist who studies pollutants at Ontario’s <a href="https://kolektiva.social/tags/NipissingUniversity" class="mention hashtag" rel="nofollow noopener" target="_blank">#NipissingUniversity</a>. Flin Flon’s 5,000 residents have been evacuated as a wildfire approaches, though so far no structures have been destroyed. "But a fire doesn’t need to directly burn mining operations to mobilize toxicants. For example, in <a href="https://kolektiva.social/tags/Yellowknife" class="mention hashtag" rel="nofollow noopener" target="_blank">#Yellowknife</a>, in Canada’s <a href="https://kolektiva.social/tags/NorthwestTerritories" class="mention hashtag" rel="nofollow noopener" target="_blank">#NorthwestTerritories</a>, <a href="https://kolektiva.social/tags/GoldMining" class="mention hashtag" rel="nofollow noopener" target="_blank">#GoldMining</a> operations between 1934 and 2004 spread <a href="https://kolektiva.social/tags/arsenic" class="mention hashtag" rel="nofollow noopener" target="_blank">#arsenic</a> as far as 18 miles away, adding to a landscape with an already high concentration of naturally occurring arsenic. In a paper published last year, Waddington and McCarter estimated that between 1972 and 2023, wildfires around Yellowknife fired up to 840,000 pounds of arsenic into the atmosphere. Arsenic is a known carcinogen associated with cardiovascular disease, diabetes, and developmental problems, according to the World Health Organization. (After the 2023 <a href="https://kolektiva.social/tags/LahainaFire" class="mention hashtag" rel="nofollow noopener" target="_blank">#LahainaFire</a> in Maui, officials reported elevated levels of arsenic, lead, and other toxic substances in ash samples. California officials also found lots of lead in smoke from 2018’s <a href="https://kolektiva.social/tags/CampFire" class="mention hashtag" rel="nofollow noopener" target="_blank">#CampFire</a>.)"Source: <a href="https://grist.org/climate/canada-wildfire-smoke-toxic-arsenic/?utm_source=firefox-newtab-en-us" rel="nofollow noopener" translate="no" target="_blank">https://grist.org/climate/canada-wildfire-smoke-toxic-arsenic/?utm_source=firefox-newtab-en-us</a> <a href="https://kolektiva.social/tags/WaterIsLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#WaterIsLife</a> <a href="https://kolektiva.social/tags/SoilIsLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#SoilIsLife</a> <a href="https://kolektiva.social/tags/AirIsLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#AirIsLife</a> <a href="https://kolektiva.social/tags/Mining" class="mention hashtag" rel="nofollow noopener" target="_blank">#Mining</a> <a href="https://kolektiva.social/tags/ToxicLegacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#ToxicLegacy</a> <a href="https://kolektiva.social/tags/FirstNations" class="mention hashtag" rel="nofollow noopener" target="_blank">#FirstNations</a> <a href="https://kolektiva.social/tags/Canada" class="mention hashtag" rel="nofollow noopener" target="_blank">#Canada</a> <a href="https://kolektiva.social/tags/Pollution" class="mention hashtag" rel="nofollow noopener" target="_blank">#Pollution</a> <a href="https://kolektiva.social/tags/Worldwide" class="mention hashtag" rel="nofollow noopener" target="_blank">#Worldwide</a> <a href="https://kolektiva.social/tags/AQI" class="mention hashtag" rel="nofollow noopener" target="_blank">#AQI</a> <a href="https://kolektiva.social/tags/ClimateChange" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateChange</a> <a href="https://kolektiva.social/tags/ClimateCrisis" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateCrisis</a> <a href="https://kolektiva.social/tags/ClimateCatastrophe" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateCatastrophe</a> <a href="https://kolektiva.social/tags/AirQualityIndex" class="mention hashtag" rel="nofollow noopener" target="_blank">#AirQualityIndex</a>

Kees van der LeunDangerous development: how German forests flipped from taking up CO₂ from the atmosphere to becoming a major net source of CO₂, around 2018. Main cause: the spruce bark beetle, propelled by storms, drought, and hot summers (see Robbie Andrews' thread on Bluesky: <a href="https://bsky.app/profile/robbieandrew.bsky.social/post/3lmykty2njs2o" rel="nofollow noopener" translate="no" target="_blank">https://bsky.app/profile/robbieandrew.bsky.social/post/3lmykty2njs2o</a>). <a href="https://mastodon.energy/tags/ClimateChange" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateChange</a> <a href="https://mastodon.energy/tags/climatefeedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#climatefeedback</a> <a href="https://mastodon.energy/tags/forest" class="mention hashtag" rel="nofollow noopener" target="_blank">#forest</a>

Abe Drayton<a href="https://universeodon.com/tags/GlobalWarming" class="mention hashtag" rel="nofollow noopener" target="_blank">#GlobalWarming</a> <a href="https://universeodon.com/tags/ClimateChange" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateChange</a> <a href="https://universeodon.com/tags/ClimateCrisis" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateCrisis</a> <a href="https://universeodon.com/tags/Feedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#Feedback</a> <a href="https://universeodon.com/tags/ClimateFeedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateFeedback</a> <a href="https://freethoughtblogs.com/oceanoxia/2023/02/22/research-suggests-were-under-estimating-global-warming-feedbacks/" rel="nofollow noopener" target="_blank">https://freethoughtblogs.com/oceanoxia/2023/02/22/research-suggests-were-under-estimating-global-warming-feedbacks/</a>

DoomsdaysCWNearly 30 dangerous feedback loops could permanently shift the Earth's climate, scientists saySuch cyclical chain reactions occur when one change triggers further changes in a process that keeps repeating itself. Some drive down warming while others amplify it, scientists say.By Laura Paddison, Feb 17, 2023 "'We, already at 1.5 [degrees Celsius], are likely to cross multiple tipping points, causing feedback loops that would make our options for a safe climate future even fewer,' Johan Rockström, Director of the Potsdam institute and a co-author of the study, told CNN."The authors called for 'immediate and massive' reductions in planet-warming pollution, as well as increased research into climate feedback loops." <a href="https://kolektiva.social/tags/ClimateFeedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateFeedback</a> <a href="https://kolektiva.social/tags/ClimateChange" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateChange</a> <a href="https://kolektiva.social/tags/ClimateCatastrophe" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateCatastrophe</a> <a href="https://kolektiva.social/tags/ClimateCrisis" class="mention hashtag" rel="nofollow noopener" target="_blank">#ClimateCrisis</a>Read more: <a href="https://www.accuweather.com/en/climate/dangerous-feedback-loops-could-shift-earths-climate/1485103" rel="nofollow noopener" target="_blank">https://www.accuweather.com/en/climate/dangerous-feedback-loops-could-shift-earths-climate/1485103</a>

Dr. Brad Rosenheim has moved!This is a large amount of dampening from a depositional system that is not physically dominant on Earth's surface! Luckily, the systematic are such that this fjord carbon 'battery' cannot release its energy while sea level is high, hence it will not result in positive feedback with anthropogenic warming (runaway warming). <a href="https://climatejustice.rocks/tags/climatefeedback" class="mention hashtag" rel="nofollow noopener" target="_blank">#climatefeedback</a> <a href="https://climatejustice.rocks/tags/climatechange" class="mention hashtag" rel="nofollow noopener" target="_blank">#climatechange</a>

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