TheClimateChanger

Same in Pennsylvania. Large parts of what are now the Allegheny National Forest were referred to as the Pennsylvania Desert - completely clear-cut by loggers. Really makes one wonder how much this incredible expansion of forestland has cooled the regional climate.

What are you talking about? Nobody is "having a discussion with AI"... I use it for assistance in creating an engaging headline, that's all. As Don pointed out, there is, in fact, evidence that it is better at that than a human. And I can say from my personal analytics, that this is certainly the case.

Don't get me wrong, though - I get where you are coming from. But I'm just doing this as a hobby and competing against a steady stream of dis- and misinformation. There are accounts that are actually PAID big bucks just to spread climate disinformation. For an unpaid hobbyist to compete against a career liars, AI is an absolute must.

Sorry, I don't have time to write my own posts. And ChatGPT headlines get far more engagement than any I could create.

I’ve noticed a weird phenomenon of drought denial online — and not just from the usual suspects. Sometimes it is even promoted by people I would not expect to do it, like @Typhoon Tipwas entertaining from the usual suspects. But the PDSI is not the Drought Monitor. It is not a subjective map or a weekly expert assessment. It is an objective drought index built from the two core inputs that matter most: maximum temperature and precipitation. And for the first four months of 2026, the U.S. has had by far the highest average maximum temperatures on record and the second-lowest precipitation on record. The most alarming thing is how much lower the PDSI is than 1934 at the same point. That was by far the worst drought observed since at least 1000 CE, per paleo evidence. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014gl061661

Really looks like El Nino might be the saving grace - hopefully anyways. Could not imagine what the PDSI could end up if we saw a 1934-type summer setup? Would be something ridiculous like -10 to -15 nationally.

El Niño may end up being the saving grace for the current drought situation. The April contiguous U.S. PDSI came in at -7.56 — the lowest April value on record and the 4th lowest monthly value of any month, behind only July 1934, August 1934, and March 2026. So while there was a slight improvement from March’s -7.85, the national drought signal remains historically extreme. The scary counterfactual is: what if this pattern carried into summer and then paired with a 1934-type heat regime — or something even hotter in today’s warmer baseline climate? PDSI is not a linear “temperature gauge,” so I would not casually forecast -10. But entering the warm season already near -8 leaves very little margin. A major summer heat dome, high evaporative demand, and continued precipitation deficits could push national drought severity into territory that is difficult to contextualize historically. In other words: even modest improvement matters here. Without a pattern change, this is the kind of setup you really do not want to stress-test.

I also think we need to recover the polymath instinct. Historically, a lot of important thinkers crossed boundaries between business, politics, science, history, law, and the arts. We’ve moved toward extreme specialization, which has benefits, but also creates blind spots. AI makes it possible for more people to responsibly cross those boundaries again — not by replacing expertise, but by helping them read, calculate, compare, and test assumptions across fields. That’s the spirit of the piece: not “I’m the final authority,” but “let’s make the assumptions visible enough that more people can examine them.”

I think I follow. I agree that access to more data does not automatically produce better analysis — people and institutions can still overread, cherry-pick, or filter evidence through assumptions. But that is exactly why I wanted to start with a narrow, checkable example. I’m not claiming one CET reanalysis settles the whole medieval climate debate. I’m saying Lamb’s specific annual estimate is often treated with more authority than it deserves, and when you test the seasonal assumptions behind it, the result changes substantially. So the point is not “everyone with data is right.” It is almost the opposite: even influential reconstructions should be broken down, tested, and made transparent enough that non-specialists can see where the assumptions enter.

What did you think of the analysis?

I'll do an expanded analysis on Substack at some point. Here's GLERL satellite data for 1995-2025 for all of the lakes.

https://www.weather.gov/buf/LakeTemp

NWS Buffalo.

That sounds logical, but it’s not how the real Earth behaves. A true global average does have a seasonal cycle, and it’s not a sampling problem—it’s physics. The key issue is that the hemispheres aren’t equal. The Northern Hemisphere has a lot more land, and land heats and cools much faster than oceans. The Southern Hemisphere is mostly ocean, which responds slowly and dampens temperature swings. So when the Northern Hemisphere warms in summer, it pushes the global average up more strongly than the Southern Hemisphere can offset during its winter. The result is a real, global annual oscillation. If both hemispheres were identical (same land/ocean mix, same heat capacity), then yes—your cancellation idea would work. But they’re not, so it doesn’t. Also, every independent global dataset—NASA GISS, NOAA, HadCRUT—shows the same seasonal wiggle. That wouldn’t happen if it were just “Iowa with a fancy name.” So the graph is doing two things at once: The up-and-down is the seasonal cycle (dominated by Northern Hemisphere land) The overall rise is the long-term warming trend Seeing both together is exactly what you’d expect from a properly constructed global temperature record.

Lol, what's up with these June contract temperatures?

Indeed. Looks like May flips the script a bit though with a rather chilly look, at least to start.