[MCN] Fossil fuel combustion --> forest combustion, drought-tolerant trees dying in drought, human thermal limits, etc., etc.

Sun Aug 1 10:30:11 EDT 2021

News from the Forest Service Washington Office and Research Stations

SPECIAL ISSUE ON FIRE RESEARCH

Includes this :
Post-Fire Recovery and Species Shifts
in a Warming World

Wildfires are a regular occurrence for many western forests, but increases in their size and severity have led to concerns about long-term forest recovery. Forest Service scientists and colleagues studied long-term forest regeneration (13-28 years) after fires <https://r20.rs6.net/tn.jsp?f=001ux2XHhWHaMVal2Ujf8ghjyCh9DYi4e7a_ZxrKzhtMu9slCjQAp5O4ceJR3J-jo42my5m_xKBpk3m63xKWLq-scWTQcHnbUbu_xvNE74oSLbfRQa8wsFLn9io-dflR__sETcICd4cq_JZApKOOGjPvM1ysTJct8bzA0mE8kziQ0zGuLVTchE9qUfPwcIsZaMP0oowRkGXb2xEKGM4Fm3kx2K-xDjvpLJYuLY9-peNmgR6KtG_T6Z3T2bbrgXNMW5CVfSOBZzhpjb8BldRgzAgFQ==&c=Tuk-g5MUc9UA-DQzpfqwgJ8XAJ4FAREl2zrFclcm5FDynxzQ5_jB-w==&ch=3jvCU4MuAmGo4FWTiiMQywHWulpHWwgO9QtN7uCTTmqe5KdM44o1tQ==> in eastern Washington state. Their results showed species-level climatic tolerances and seed dispersal limits that may predict future challenges to regeneration with expected future climate warming and increased fire activity.

Climate change expected to favor drought-tolerant plants during postfire recovery

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Bloomberg Green Newsletter July 31, 2021

What happens after the pledges to plant 1 million trees?

By Linda Poon
It seems like every few weeks, there’s a new campaign somewhere to plant 1 million — or some other impressive number — of trees.

“It’s not just about planting a million trees,” said Lara Roman, a U.S. Forest Service researcher who studies tree mortality. “It’s about planting and taking care of a million, and in the right places.”

Now, with an ever-growing climate crisis that’s heightened the allure of trees but that’s also made the urban environment more hostile to them, it’s even more urgent for policymakers to rethink how they will grow their tree canopies and take care of them.

That includes careful consideration of not only where they plant — in the U.S., the poorest neighborhoods have 41% less canopy <https://link.mail.bloombergbusiness.com/click/24611222.165005/aHR0cHM6Ly93d3cuYmxvb21iZXJnLmNvbS9uZXdzL2FydGljbGVzLzIwMjEtMDYtMjUvbWFwcGluZy10aGUtdW5lcXVhbC1kaXN0cmlidXRpb24tb2YtdHJlZXM_Y21waWQ9QkJEMDczMTIxX0dSRUVOREFJTFkmdXRtX21lZGl1bT1lbWFpbCZ1dG1fc291cmNlPW5ld3NsZXR0ZXImdXRtX3Rlcm09MjEwNzMxJnV0bV9jYW1wYWlnbj1ncmVlbmRhaWx5/58ffbaf7dd4c29967b8b4646B08d76092> than the wealthiest ones — but also what they plant. Amid droughts and diseases that can wipe out an entire species of trees, cities need to think ahead to planting more resilient trees, ones that require less water and can withstand increasing heat. 

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Drought-Induced Blue Oak Mortality in the Sierra Nevada
Using hyperspectral imagery, Southwest CASC-supported researchers estimates that during a recent intense drought in California, about 18% of blue oak trees died. This high level of mortality is surprising, given the drought-hardiness of the species. This research indicates that hyperspectral imaging can provide forest managers a basis for monitoring change and developing more accurate tree mortality predictions at the local and watershed scales. Learn more>> <https://www.swcasc.arizona.edu/news/2021/06/drought-induced-blue-oak-mortality-sierra-nevada> 

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Arizona, Utah : Unprecedented drought-driven dieoff of drought tolerant tree
 <https://www.sltrib.com/news/environment/2018/11/18/juniper-mystery-why-is/>
The juniper mystery: Why is a tree that's supposed to ... <https://www.sltrib.com/news/environment/2018/11/18/juniper-mystery-why-is/>
Nov 18, 2018 — The juniper mystery: Why is a tree that's supposed to withstand drought suddenly dying in southern Utah

 <https://www.fs.usda.gov/detail/kaibab/news-events/?cid=FSEPRD906836>
Drought causing juniper die-off in central and northern Arizona <https://www.fs.usda.gov/detail/kaibab/news-events/?cid=FSEPRD906836>
Drought causing juniper die-off in central and northern Arizona ... The US Forest Service has been investigating a significant die-off of juniper trees across much of ...

 <https://kjzz.org/content/1684315/us-forest-service-official-massive-juniper-tree-die-arizona-unprecedented>
Official: Massive Juniper Tree Die-Off 'Unprecedented'  <https://kjzz.org/content/1684315/us-forest-service-official-massive-juniper-tree-die-arizona-unprecedented>
May 18, 2021 — Juniper trees in parts of Arizona are dying in large numbers, and the ongoing drought seems to be to blame. But unlike some species of pine ...

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News Release 26-Jul-2021 <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
Extreme heat, dry summers main cause of tree death in Colorado's subalpine forests <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
UNIVERSITY OF COLORADO AT BOULDER
RESEARCH NEWS RELEASE <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
 <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent University of Colorado Boulder research. <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
JOURNAL <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>
Journal of Ecology <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>

Full news release 
https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php <https://www.eurekalert.org/pub_releases/2021-07/uoca-ehd072321.php>

Excerpt from release

These deaths are not only affecting larger trees, thus reducing forests' carbon storage, but hotter and drier conditions are making it difficult for new trees to take root across the southern Rockies in Colorado, southern Wyoming and northern parts of New Mexico.

It's well known that rising temperatures and increasing drought are causing tree deaths in forests around the globe. But here in Colorado, researchers found that heat and drought alone are responsible for over 70% of tree deaths in the 13 areas of subalpine forest they measured over the past 37 years. That's compared with about 23% of tree deaths due to bark beetles and about 5% due to wind damage.

"It was really surprising to see how strong the relationship is between climate and tree mortality, to see that there was a very obvious effect of recent warmer and drier conditions on our subalpine forests," said Andrus, who conducted this research while completing his graduate degree in physical geography at CU Boulder. "The rate of increasing mortality is alarming."

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Environmental Research Letters Published 29 July 2021

Betting on the best case: higher end warming is underrepresented in research
Florian U Jehn, Marie Schneider, Jason R Wang, Luke Kemp and Lutz Breuer

OPEN ACCESS pdf
96 Total downloads as of 1st day of publication
https://iopscience.iop.org/article/10.1088/1748-9326/ac13ef/pdf <https://iopscience.iop.org/article/10.1088/1748-9326/ac13ef/pdf>

Abstract
We compare the probability of different warming rates to their mentions in IPCC reports through text mining. We find that there is a substantial mismatch between likely warming rates and research coverage. 1.5 °C and 2 °C scenarios are substantially overrepresented. More likely higher end warming scenarios of 3 °C and above, despite potential catastrophic impacts, are severely neglected.

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When Will It Get Too Hot for the Body to Survive? <https://news.google.com/articles/CAIiEBfKDB0ScC8XCmPQG5RZzGUqFQgEKg0IACoGCAowuLUIMNFnMInmAg?hl=en-US&gl=US&ceid=US%3Aen>
Slate <https://news.google.com/publications/CAAqBggKMLi1CDDRZw?hl=en-US&gl=US&ceid=US%3Aen>
4 hours ago

What's the hottest temperature the human body can endure? <https://news.google.com/articles/CAIiEDm6iBNY632COqTIKPB2ksQqMwgEKioIACIQIy2Z_nMMhehesVpLZUEpbyoUCAoiECMtmf5zDIXoXrFaS2VBKW8w5qjKBg?hl=en-US&gl=US&ceid=US%3Aen>
Livescience.com <https://news.google.com/publications/CAAiECMtmf5zDIXoXrFaS2VBKW8qFAgKIhAjLZn-cwyF6F6xWktlQSlv?hl=en-US&gl=US&ceid=US%3Aen>
12 hours ago

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Warming planet means 83 million face death from heat this century <https://news.google.com/articles/CAIiEIgr_Yxu1GddQo9w_eNwx_YqGQgEKhAIACoHCAowje6jCzDQ-LsDMI3LhQc?hl=en-US&gl=US&ceid=US%3Aen>
The Seattle Times <https://news.google.com/publications/CAAqBwgKMI3uowsw0Pi7Aw?hl=en-US&gl=US&ceid=US%3Aen>
Yesterday

Global Warming Will Kill 83 Million People by 2100: New Study <https://news.google.com/articles/CAIiEIr4uO40V2kUtqMtdDiFOcsqGQgEKhAIACoHCAow4uzwCjCF3bsCMIrOrwM?hl=en-US&gl=US&ceid=US%3Aen>
Bloomberg <https://news.google.com/publications/CAAqBwgKMOLs8Aowhd27Ag?hl=en-US&gl=US&ceid=US%3Aen>
Yesterday

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Limitless Growth on a finite planet: is there an alternative – Generation Climate Europe <https://www.google.com/url?rct=j&sa=t&url=https://gceurope.org/limitless-growth-on-a-finite-planet-is-there-an-alternative/&ct=ga&cd=CAEYhAQqFDEzMzM0MTc4Mjk0NjU2MTQxNjU4MhoyMDUzMjFmZjVlMTVjNjgxOmNvbTplbjpVUw&usg=AFQjCNH_7cP7MbiTX-eoI1TM6wdRSyW9Bw>
Generation Climate Europe
The (un) sustainability of economic growth. In an attempt to decouple economic growth from environmental degradation, the Agenda 2030 of the ...

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“We don’t need to guard [ i.e., defend/protect ourselves ]  against depression, against anger, against despair when it comes to climate change.”

http://www.slate.com/articles/health_and_science/science/2017/07/we_are_not_alarmed_enough_about_climate_change.html <http://www.slate.com/articles/health_and_science/science/2017/07/we_are_not_alarmed_enough_about_climate_change.html>

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Excerpt:  "Environmental psychologist Susi Moser, also talks about the importance of acknowledging our underlying fears and distress about climate change as an important coping strategy. Moser (2012) calls it ‘the bravest thing’ – getting real, accepting reality without illusions, and accepting that better tomorrows may not come.”

https://www.isthishowyoufeel.com/blog/how-do-people-cope-with-feelings-about-climate-change-so-that-they-stay-engaged-and-take-action <https://www.isthishowyoufeel.com/blog/how-do-people-cope-with-feelings-about-climate-change-so-that-they-stay-engaged-and-take-action>

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