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LHaden
@lhaden-climate.bsky.social
Electrical/Software Engineer @ Sandia National Labs
The rise in Niño 3.4 region sea surface temperatures over the past few weeks has been nothing short of astonishing. We are now hotter than any days during the 1997/1998 super El Niño event, and we are still many months from the peak.
I'm not sure folks have realized just how crazy the second half of 2026 and 2027 will be for global temperatures – on the back of a record-smashing El Niño event. Here is my latest estimate of where both years will end up compared to global temperatures since 1850.
Temperatures so far this year are the 2nd warmest on record for the contiguous United States (CONUS). The current record high is 2012. There is a long-term warming trend. Data from doi.org/10.7289/V5SX...
Oh, I like the "Climate Shift Index", very nicely done.
"Climate Shift Index levels of 5 — the highest possible — are forecast across large areas of the country through July 28, indicating that climate change made the extreme heat at least five times more likely." via www.climatecentral.org/climate-shif...
The average global temperature so far this year for the January-June period is the 3rd warmest on record (since at least 1850)... This data is using NOAAGlobalTempv6.1.0: www.ncei.noaa.gov/products/lan...
Your semi-annual update on Arctic-wide temperatures. Shorter term averages show lots of variability, but at the multi-decade scale the trend is unambiguous. #Arctic #Climate #ClimateChange
"Welcome to the apocalyptic haze of the new abnormal" | My op-ed (w/ Susan Joy Hassol) in the @the-independent.com: www.independent.co.uk/us/voices/ai... (from two years ago)
Welcome to the apocalyptic haze of the new abnormal | Michael E. Mann
The current wildfires are a preview of far worse things to come, write climate experts, Susan Joy Hassol and Professor Michael E. Mann
independent.co.uk
830 wildfires burning across Canada right now. And you know what’s going to make it worse in the future? More oil pipelines. This is why our voice and our vote matters.
The last three months have averaged the highest global mean sea surface temperature on record relative to any other April-May-June period (since at least 1854)... 🌊 Data from www.ncei.noaa.gov/products/ext...
Breaking News! Code: y-axis alert. Nino 3.4 SST is now up to 3.63 SD above the 1991-2020 baseline, about 1-in-7000 in the absence of anthropogenic warming. There's not enough room in a single post to express just how crazy this is. Please read: climatecasino.substack.com/p/some-monst...
Speaking for the west, I think we'll pass on this one. If only we had a choice.
It's still early, but there are some growing signs for a potentially very strong upper-level ridge (heat dome) building across the Western U.S. by mid-July. This could bring with it another round of extreme heat. Stay tuned! Maps from polarwx.com/models and mapwall.met.psu.edu/ewall/wxworld/
This is a clear example of a compound hazard event (i.e., amplified societal impacts). Severe thunderstorms knocked out power for nearly 250,000 people last night, and many are now seeing near-record heat today while still without electricity. Orange: heat advisories Pink: excessive heat warnings
Overnight temperatures were near all-time record highs for cities in the Northeast last night. These warm nights and high humidity directly increase heat stress. The last decade has seen a significant rise in days with dangerous humid heat. #ClimateChange More www.climatecentral.org/climate-matt...
Breaking News! Code Yikes! The June Nino 3.4 sea-surface temperature anomaly came in at 1.59°C above the 1991-2020 baseline, so we're already in a strong El Nino. The latest CFSv2 model runs now show the Nino 3.4 SST anomaly forecast peaking at 4.10°C in November.
June 2026 was the second warmest June on record according to Copernicus ERA5. 🔥
Regional changes in those overnight (minimum) temperatures during the months of June and July since 1990. Most all areas are seeing warming, which is largest in the Southwest. This is particularly dangerous without access to cooling. Find more US climate change visuals: zacklabe.com/united-state...
The scary part is he doesn't think there's a problem with it.
JD Vance told the truth. Watergate would barely crack the news cycle today compared to the daily and overwhelming corruption of the Trump administration. The history books will judge us brutally
We often say this heat wave is a glimpse of our future. That's true, but it's only part of the story. Conditions like these will become more common, but even more intense heat waves will then emerge, with worsening impacts on people and ecosystems. Graphic from climate.copernicus.eu/esotc/2025/t...