Key developments
April CO2 average hits record high
Scientific American's Adam Kovac reported NOAA data showing atmospheric CO2 averaged about 431 ppm in April 2026 at Mauna Loa Observatory, the highest monthly mean on record. The article notes April is the usual seasonal peak, but the long-term trend keeps climbing from pre-industrial levels around 280 ppm. It also says NOAA's 2027 budget proposal would cut funding for several climate-monitoring facilities, including Mauna Loa.
Why it matters
It confirms that atmospheric carbon buildup is still accelerating and underscores the value of preserving long-running monitoring networks.
Sources & driving stories
SCIENTIFIC AMERICAN · Adam Kovac
Scientific American coverageStudy links Alaska mega-tsunami to glacier retreat
The Guardian's Maya Yang reported on a Science study led by Dan Shugar describing the 10 August 2025 Tracy Arm fjord rockslide in southeast Alaska. The collapse fell about 1 km onto South Sawyer glacier and into a narrow 48 km fjord, generating a 481-meter tsunami, a 36-hour seiche, and seismic waves comparable to a magnitude-5.4 earthquake. Researchers say glacier retreat and permafrost degradation are making similar landslide-tsunami events more likely in Arctic fjords that cruise ships regularly visit.
Why it matters
It identifies a new coastal hazard pathway in rapidly warming Arctic terrain with direct implications for tourism and emergency planning.
Sources & driving stories
THE GUARDIAN · Maya Yang
The Guardian coverageDenmark awards major industrial CCS contract
Carbon Herald's Vasil Velev reported that Denmark awarded Aalborg Portland a multibillion-dollar contract to capture, transport, and store 1.25 million tons of CO2 a year. The deal followed a difficult tender in which many bidders withdrew after strict conditions and penalties, leaving the government to rely on its 28.7 billion DKK support pool. The award is a notable step in Europe's industrial carbon-capture buildout, but the tender process shows how hard it remains to scale CCS.
Why it matters
It shows public money moving into large-scale CCS while also exposing execution risks in how these projects are procured.
Sources & driving stories
CARBON HERALD · Vasil Velev
Carbon Herald coverageWorth noting
WORTH NOTING
Uzbekistan wind project gets financing
ADB's $116 million package moves a 300-MW wind plant toward construction and adds another sizable clean-power project in Central Asia.
WORTH NOTING
Gujarat becomes India's top renewable state
Gujarat narrowly edged Rajasthan on installed capacity, showing how fast India's state-level renewable rankings are shifting.
Still unclear
OPEN QUESTION
Will Mauna Loa monitoring keep full funding?
The record CO2 series is only as useful as the observatory network that sustains it, and the budget proposal raises continuity risk.
OPEN QUESTION
Can fjord hazard monitoring scale with cruise traffic?
The Alaska study suggests retreating glaciers may be creating hard-to-predict tsunami hazards in destinations that are seeing more visitors.