Key developments
Clean electricity met all new demand
Ember's annual review, reported on April 21 by Al Jazeera and Carbon Brief, says low-emissions sources met all new global electricity demand in 2025 for the first time. Solar supplied three-quarters of the 849 TWh increase, wind covered almost all of the rest, and low-emissions sources reached 42.6% of the world's 31,779 TWh of electricity. Ember also said emissions intensity fell to 458 gCO2e/kWh, while Carbon Brief reported that renewables overtook coal as the world's largest electricity source.
Why it matters
It is a major signal that clean power is now scaling fast enough to absorb growth in demand, even if it is still not enough to hit climate targets on its own.
Sources & driving stories
AL JAZEERA · John T Psaropoulos
Al Jazeera coverageCARBON BRIEF · Molly Lempriere
Carbon Brief coverageRio Grande reservoirs enter dire 2026 season
At the Rio Grande Compact Commission annual meeting in Santa Fe on April 20, officials from Colorado, New Mexico, Texas and federal agencies described 2026 conditions as severe, critical, dire and record-low. Snow water equivalent in the Rio Grande headwaters was at 13% of median in mid-April after a weak Colorado snowpack and warm March melt, while Elephant Butte Reservoir was below 13% capacity and most Bureau of Reclamation reservoirs were below 15%. Reclamation warned Elephant Butte could fall to 2% of capacity by late August if monsoon rains disappoint, and the San Acacia reach dried on March 27, the earliest recorded date in 30 years.
Why it matters
The outlook points to acute water stress for farmers, compact compliance and endangered species recovery across the basin.
Sources & driving stories
INSIDE CLIMATE NEWS · Martha Pskowski
Inside Climate News coverageEurope's Hormuz shock revives clean-energy case
Earth.Org reported on April 21 that the US-Israeli conflict with Iran disrupted crude supply through the Strait of Hormuz, pushing oil above $100 a barrel and raising diesel, jet fuel and LPG prices. European Commission President Ursula von der Leyen said 10 days of disruption had already cost European taxpayers an extra 3 billion euros in fossil-fuel imports; the piece also notes the EU spent nearly 400 billion euros on fossil-fuel imports in 2025 versus about 330 billion euros invested in clean energy. The article says a new Clean Energy Investment Strategy, adopted last month, implies annual energy-sector investment of about 660 billion euros through 2030, with electrification, storage and geothermal prioritized.
Why it matters
The shock ties climate policy to energy security and could accelerate investment in electrification and other clean-power infrastructure.
Sources & driving stories
EARTH.ORG · Manleen Dugal
Earth.Org coverageWorth noting
WORTH NOTING
Long Island solar adjusts after credit loss
LIPA's solar capacity continued rising to 1,252 MW by February 2026, but installers are adapting after the federal 30% residential clean-energy credit ended in January.
WORTH NOTING
Data centers could serve nearby heat loads
An analysis argues that on-site generation, batteries and district heating could turn data centers into local energy assets, citing a 75 MW Finnish facility that already heats about 2,500 homes.
WORTH NOTING
Youth climate distress gets new framework
A PLOS Climate study offers cross-sector guidance for supporting adolescent and young adult mental health in climate-related stress, with a Seattle and King County public-health focus.
Still unclear
OPEN QUESTION
Can grids add enough storage and flexibility?
Ember's clean-power milestone still depends on transmission, storage and peak-demand management, not just generation capacity.
OPEN QUESTION
Will Rio Grande storage avoid late-summer collapse?
The basin could face near-empty reservoirs if the monsoon disappoints, while New Mexico must also comply with the Texas v. New Mexico settlement.