chubbs

China's CO2 emissions are peaking not accelerating. That said China coal use is massive and coal interests are putting up a fight. Its unclear how China's policy towards coal will evolve. https://www.carbonbrief.org/analysis-record-solar-growth-keeps-chinas-co2-falling-in-first-half-of-2025/ https://energyandcleanair.org/publication/chinas-coal-is-losing-ground-but-not-letting-go/

Trump's speech showed how unprepared the US is becoming for the future. https://electrotechrevolution.substack.com/p/rewiring-the-energy-debate?utm_source=substack&utm_campaign=post_embed&utm_medium=web

Here are some snow stats for I95 cities. Last 10 years have been below normal at all cities. Philly to Boston are above average over last 30 years. This year 95/96 will be dropped from 30-year average, so 30-year averages are likely to drop.

Wildfire smoke is having an increasing US health impact. Likely also cooling our summers. https://bsky.app/profile/shannonosaka.bsky.social/post/3lz4nvt3eqc2f https://www.nature.com/articles/s41586-025-09611-w#Sec4

Some charts from the recent climate experts review of the recent DOE CWG report. The first chart shows how misleading taking an average of GHCN stations is because: 1) the stations are not spread uniformly across US and the 2) station network has changed with time both equipment and station locations. The second chart shows that a proper analysis shows heat wave days are increasing in the US and are now well above 1930s levels. The final chart shows that mid-latitude extreme temperatures are increasing much faster outside of the US. https://drive.google.com/file/d/1knIpC4vGrZXDsrF13RC2CujCjhbILgaa/view?usp=sharing

Clear we have passed an energy tipping point, with fossil fuels becoming increasingly uncompetitive. China's large manufacturing scale key in driving down costs. Countries without entrenched fossil fuel interests are leading the way and China will sell them the gear. https://ember-energy.org/latest-insights/china-energy-transition-review-2025/

PIOMASS sea ice volume is currently number 2 behind 2012. Volume losses were unusually low this year in June, similar to 2017 in that regard.

Ocean heat content in the 0-2000m layer has jumped up this year, recovering from a nino-related dip. A sign that warming at a fast clip continues.

Solar is accelerating rapidly in Africa. This is mainly due to economics, lower cost of solar panels and batteries.

It is interesting to compare the current standing and recent trends in SST vs global temperatures. Comparing to 2024, SST have risen through the year particularly in summer months, while global temperatures have cooled relative to 2024. Difficult to compare 2025 to 2023 because of the strong rise in temperature in 2023, but just looking at August, both SST and global temperatures are somewhat cooler in 2025 vs 2023. Comparing 2025 to pre-2023 years, SST is currently warmer than any year by a good margin, while global temperatures are not well clear of the pre-2023 years. Taken as a whole, 2025 SST is like 2023, unusually warm for the enso condition; but, unlike 2023, global temperatures are not unusual for the enso state. Mid-latitude marine heat wave probably playing a role . Will be interesting to track as summer turns to fall. Guessing SST will cool will warm relative to other years and global temperatures will warm; but, we will see.

After several decades of rapid warming, arctic warming ground to a halt in the past 10-15 years. while warming in the NHemi mid-latitudes sped up. Consistent with recent trends in arctic sea ice and our recent winters.

Yes, UHI and global warming are both happening. The presence of one doesn't diminish the other. This thread/board is littered with whataboutism. What about this, what about that. Many things can be true at the same time. That doesn't change the big picture. Scientists from the 1970s would not be surprised by the warmer world we have today or that Phoenix has a heat island.

https://data.giss.nasa.gov/gistemp/station_data_v4_globe/

Not sure about Phoenix as a whole. But the heat island effect looks saturated at the Sky Harbor airport which isn't far from downtown. Actual and adjusted temperatures have warmed at the same rate since 1980. This means that the airport is warming at the same rate as regional sites outside of the Phoenix heat island. Before 1980 there is evidence of heat island warming at the airport (or some other site specific issue).