Last Update: 06/03/2026 at 6:25 AM EST

Morning Briefing: Climate

Tuesday, May 12, 2026

May 12, 2026

New Signs of Stress in Power, Ice and Water

Yesterday’s climate news was less about new targets than about measurable stress in systems already under strain. In the United States, mercury emissions from coal plants rose about 9 percent in 2025, to more than 4,800 pounds, after years of decline. Utilities burned more coal as electricity demand rose, including from data centers, and gas prices stayed volatile, while tighter federal pollution controls were weakened or delayed.

New Antarctic field results added to the long-range risk picture. Scientists drilling beneath Thwaites Glacier found unusually warm, turbulent water at the ice base, direct evidence of ocean-driven melt from below even though part of the instrument package failed. The findings do not change coastlines overnight, but they strengthen concern that one of Antarctica’s most vulnerable glaciers is being destabilized from underneath.

Elsewhere, the day’s reporting stayed close to adaptation limits. Maine’s wild blueberry growers are contending with drought, heat, wet spells and late frosts that are cutting yields and raising costs, and smaller farms may not be able to finance irrigation or mulch even with subsidies. Reporting on Mexico City’s continued land subsidence, roughly 10 inches a year and driven largely by groundwater depletion, was a similar reminder that climate pressure often arrives through water management and infrastructure failure rather than through temperature alone.

Key Points

  • U.S. coal-plant mercury emissions rose about 9 percent in 2025 to more than 4,800 pounds as coal burn increased and tighter controls were weakened or delayed.
  • Direct measurements under Thwaites Glacier found warm, turbulent seawater at the ice base, reinforcing concern about ocean-driven Antarctic melt and long-term sea-level rise.
  • Maine, which supplies nearly all commercially sold U.S. wild blueberries, is seeing climate stress translate into crop losses and adaptation costs that smaller farms may not be able to absorb.
  • Mexico City’s ongoing subsidence and warnings of Southwestern ponderosa dieback show physical climate risk and water stress increasingly surfacing as infrastructure and land-management problems.

Implications

Load growth and weaker pollution enforcement are now producing measurable setbacks in environmental and public-health outcomes.

Adaptation is becoming a financing and governance issue: farms, city water systems and forests can see the risk, but many still lack the capacity to respond at the needed scale.

New Antarctic observations add further weight to long-horizon coastal planning even when immediate policy attention is focused on near-term costs.

Things to watch

Watch

Whether summer U.S. power demand leads to further coal burn or more plant life extensions.

Watch

Whether forecasters grow more confident in a developing El Niño, which could alter late-2026 flood, drought and hurricane expectations.

Watch

Whether state or federal support expands for farm adaptation and urban water resilience as costs keep rising.