@danielarthurbrown.com.bsky.social
Climatologist by training. Working for the Huron River Watershed Council. Currently focused on climate resilience and addressing PFAS. Nature photographer on the side. Hike, pedal, and paddle whenever I can. I stand with π¨π¦πΊπ¦πͺπΊ linktr.ee/danielarthurbrown
βOn Monday the AQI in Detroit was at least 159. On a smoky day, when AQI levels reach 100 to 200, "the exposure to the fine particulate matter, the air pollution, is similar to smoking a quarter to half a pack a day," Wilgus says.β
04.08.2025 23:51 β π 0 π 0 π¬ 0 π 0Great discussion here on the causes of increased smoke in our Minnesota skies.
Wildfires have increased 4X in Canada and the US since the 1970s. π₯
What changed?
The climate.
#mnwx
www.mprnews.org/episode/2025...
We'll have some less smoky summers, but get used to smokier MN summer trend until we reduce GHG emissions.
Canada has 1.2 BILLION ACRES of boreal forests.
Hotter drier climate sucks more moisture from dry fuels.
Unfortunately this is the tip of the iceberg for smoke potential.
If you missed it then, give it a read now folks!
04.08.2025 20:32 β π 3 π 3 π¬ 0 π 0The economy is on the precipice of recession. Thatβs the clear takeaway from last weekβs economic data dump. Consumer spending has flatlined, construction and manufacturing are contracting, and employment is set to fall. And with inflation on the rise, it is tough for the Fed to come to the rescue. Unemployment remains low, but thatβs only because labor force growth has gone sideways. The foreign-born workforce is shrinking, and labor force participation is declining. Telling is the economy-wide hiring freeze, particularly for recent graduates, and the decline in hours worked. Itβs no mystery why the economy is struggling; blame increasing U.S. tariffs and highly restrictive immigration policy. The tariffs are cutting increasingly deeply into the profits of American companies and the purchasing power of American households. Fewer immigrant workers means a smaller economy. Any notion that the economic data misrepresents the reality of how the economy is performing is way off base. There are revisions to the data, even big revisions, but they universally say the economy is doing worse. Thatβs because it is. BTW, the DOGE cuts are a key factor in the revisionsβnot because BLS has cut staff, although that canβt help, but because the government often reports payrolls to BLS late. It didnβt matter when government employment was stable, but now that itβs declining, the cuts are picked up in the revisions.
Trump is panicking because the economic numbers are giving a recession vibe.
From the Chief Economist at Moody's.
On The Climate Brink, Zeke Hausfather explains how the recent DOE climate report, written by climate contrarians, misrepresents his work.
www.theclimatebrink....
This is the first time I've read an extreme scenario that seems plausible and urgent within two centuries. Other pathways to such warming require exhausting all known fossil fuels, but this cascade failure narrative seems more alarming to me.
Curious what #climatechange experts think. Thoughts?
"If this methane is released, by the middle of the next century the temperature will have already increased between 8 and 10 degrees. At this level of warming, much of the earthβs surface is uninhabitable for humans and you have the sixth largest biodiversity extinction on the planet."
01.08.2025 14:22 β π 0 π 0 π¬ 1 π 0"If you get to 4 degrees, the Earth starts to warm the oceans so much that not only does it end ocean biodiversity but it releases a huge amount of methane that is frozen at the bottom of the oceans, especially in the Arctic. ...
01.08.2025 14:22 β π 0 π 0 π¬ 1 π 0"From this point, chain reactions can raise the Earthβs temperature to even more alarming levels, quickly. ...
01.08.2025 14:22 β π 0 π 0 π¬ 1 π 0"If we continue to emit carbon dioxide as we do today, warming will reach 2.5 degrees in 2050, and then we will reach many points of no return, which will release a huge amount of carbon dioxide. ...
01.08.2025 14:22 β π 0 π 0 π¬ 1 π 0That led to look this up, where he elaborated on his thinking:
01.08.2025 14:22 β π 1 π 0 π¬ 1 π 0A quote here from Carlos Nobre caught my attention:
"And if that happens β if the Arctic Ocean warms up by 3-4C β the amount of methane that would be released could see [air] temperatures reach 8-10C..."
(thread)
www.carbonbrief.org/experts-whic...
Federal agencies hiding out in a bunker
31.07.2025 23:46 β π 2850 π 1050 π¬ 68 π 108refute this: https://www.energy.gov/sites/default/files/2025-07/DOE_Critical_Review_of_Impacts_of_GHG_Emissions_on_the_US_Climate_July_2025.pdf
refute this: https://www.energy.gov/sites/default/files/2025-07/DOE_Critical_Review_of_Impacts_of_GHG_Emissions_on_the_US_Climate_July_2025.pdf
That new usual suspects (Curry, Spencer, Christy, McKitrick, Koonin) Trump EPA climate denier report? (www.energy.gov/sites/defaul...)?
I asked chatGPT to evaluate it. It had no trouble producing a succinct and convincing refutation:
Amazing
30.07.2025 20:52 β π 1 π 0 π¬ 0 π 0The craziest discovery about our global water crisis -- besides the fact that the continents are drying -- is that groundwater pumping is now driving sea level rise. @hrishikeshac.bsky.social @jayfamiglietti.bsky.social www.propublica.org/article/wate...
28.07.2025 17:37 β π 236 π 121 π¬ 13 π 8Honestly makes me want to vom a little
28.07.2025 17:00 β π 1 π 0 π¬ 0 π 0Knowing everything you know about Epstein and Trump read this yourself two-three times and ask what the most obvious interpretation of it would be.
17.07.2025 23:26 β π 3413 π 745 π¬ 246 π 131Table from Friedlingstein et al, Global Carbon Budget 2024 Emissions 1750-2023 - fossil CO2 emissions 490 +- 25; land-use change emissions 255 +- 75; total emissions 745 +- 80 (in billion tons of carbon) Source: https://pure.iiasa.ac.at/id/eprint/20113/
Did you know that since 1750, land-use change is responsible for about *one-third* of total CO2 emissions released to the atmosphere?
About 255 billion tons of carbon, or nearly *a trillion tons of CO2e*, have been emitted.
That's basically the ghosts of *2 billion hectares of forests* in the sky.
Today NASA backtracked on its statement earlier this month that the National Climate Assessments would be hosted on their website.
βNASA has no legal obligations to host globalchange.govβs data,β a spokeswoman said today. βWe never did and will not host the data.βwww.nytimes.com/2025/07/14/c...re
There are some really informative perspectives in here. Iβve never liked the phrase βtipping point.β I think what weβre really talking about are cascade failures.
There is never a runaway level of warming, but there are cascade failures (feedbacks) that have critical thresholds.
"A Michigan clock company that has helped people keep time for 99 years says itβs going out of business.... [T]ariffs imposed by the Trump administration have increased the cost of essential components that arenβt available in the U.S."
www.nbcnews.com/business/bus...
BREAKING: Metadata shows the FBIβs βrawβ Jeffrey Epstein prison video was likely modified.
π§΅
Brazen, cruel racism is now rampant and cheered in the mainstream Republican Party, which was the whole dream of the MAGA movement all along.
09.07.2025 23:13 β π 2 π 0 π¬ 0 π 0bsky.app/profile/katt...
09.07.2025 23:03 β π 6 π 0 π¬ 1 π 0β.. traffic has dropped by only a single percentage point as a result of leaving Twitter ..β
@niemanreports.org #Hellsite
niemanreports.org/npr-twitter-...