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Climate Science

All articles tagged with #climate science

Sky-based tweak could blunt El Niño before it begins
earth-science2 days ago

Sky-based tweak could blunt El Niño before it begins

A Science Advances modeling study shows that targeted marine cloud brightening over the southeast tropical Pacific could weaken, or even neutralize, developing El Niño events. In simulations of the 1997–1998 and 2015–2016 super El Niños, applying the technique from June through February restored ENSO-neutral conditions, but researchers stress this is a proof-of-concept and not a-ready-for-field approach, noting uncertainties such as potentially faster La Niña onset and other unintended climate effects that require extensive follow-up before any real-world tests.

via Gizmodo|
#climate-science#earth-science#el-nino
Space junk forces more satellite dodges, risking climate science data
space1 month ago

Space junk forces more satellite dodges, risking climate science data

Space debris in low Earth orbit is increasing, forcing satellites to perform more collision-avoidance maneuvers. Each maneuver uses fuel and can degrade data from climate-observing satellites (Aqua, Terra, Aura), potentially erasing long-running climate records. As debris grows, collision risk rises and insurability drops, pressuring public agencies and private operators to safeguard vital science data.

via Space|
#climate-science#kessler-syndrome#nasa
Top Climate Researchers Rebut DOE’s Claims on Human Warming Fingerprint
science1 month ago

Top Climate Researchers Rebut DOE’s Claims on Human Warming Fingerprint

A team of climate scientists led by Benjamin Santer rebuts a US Department of Energy report they say misrepresents evidence of humanity’s role in warming, reaffirming the distinctive fingerprint of climate change—tropospheric warming and stratospheric cooling—and warning the DOE analysis should not be used to justify regulatory decisions like the EPA’s endangerment finding.

via SciTechDaily|
#climate-science#doe-report#endangerment-finding
Antarctic Ice Core Extends Earth's Climate Record to 1.2 Million Years
science2 months ago

Antarctic Ice Core Extends Earth's Climate Record to 1.2 Million Years

Europe-wide researchers drilled a 2.8-km Antarctic ice core to produce the longest continuous climate record, about 1.2 million years, showing atmospheric CO2 closely tracking global temperatures across repeated cycles and offering new clues to why ice ages intensified during the Mid-Pleistocene transition. The Beyond EPICA findings—presented at the European Geosciences Union meeting—are early results, not yet peer‑reviewed, with more data to come from the ancient air bubbles trapped in the ice.

via Nature|
#antarctica#climate-science#co2
El Niño Could Be One of the Strongest on Record, ECMWF Signals
weather2 months ago

El Niño Could Be One of the Strongest on Record, ECMWF Signals

Forecasters say this year’s El Niño could become one of the strongest on record, with ECMWF data showing central Pacific temperatures potentially 3°C above average by year’s end. If confirmed, it could approach or surpass the 1877 and 2015 records and potentially exceed the threshold for a super El Niño. NOAA also expects a strong El Niño to form by July, with a notable chance that 2027 could be the warmest year on record, signaling widespread global impacts on climate, agriculture, water, and economies through late this year and beyond.

via The Washington Post|
#climate-change#climate-science#el-nino
Microplastics may be nudging Earth’s climate warmer, new study suggests
environment2 months ago

Microplastics may be nudging Earth’s climate warmer, new study suggests

A Nature Climate Change study finds microplastics, especially colored pieces, absorb more heat than they reflect, potentially contributing to atmospheric warming; while their impact is not as large as major pollutants, the particles’ near-ubiquitous presence across ecosystems calls for more research into their climate effects.

via The Washington Post|
#climate-change#climate-science#environment
Soil Fungi Could Trigger Rain by Seeding Clouds with Ice-Nucleating Proteins
science2 months ago

Soil Fungi Could Trigger Rain by Seeding Clouds with Ice-Nucleating Proteins

A Science Advances study shows soil-dwelling Mortierellaceae fungi secrete water-soluble ice-nucleating proteins that act as cloud seeds, triggering ice formation and rain even at relatively warm temperatures. This bio-precipitation loop links forest soils to atmospheric rainfall, complements bacterial ice-nucleating proteins, and arose via horizontal gene transfer from bacteria. The finding highlights the climate relevance of soil microbes and suggests natural, biodegradable options for cloud seeding while underscoring the rainfall impact of forest conservation.

via ScienceAlert|
#climate-science#cloud-seeding#fungi
Ancient ice records reveal stable greenhouse gas levels over 3 million years
science3 months ago

Ancient ice records reveal stable greenhouse gas levels over 3 million years

New shallow Allan Hills blue-ice cores extend greenhouse-gas records to about 3.1–0.5 million years ago. They show mean CH4 changing little over the period, with CO2 falling by ~20 ppm from 2.9 to 1.2 Ma and then staying stable within ±10 ppm through the mid‑Pleistocene Transition; respiration-corrected samples from 2.8–3.1 Ma yield CO2 of 250 ± 10 ppm, indistinguishable from the early Pleistocene. These results suggest long‑term stability of atmospheric CO2 and CH4 and demonstrate that ice-core gas measurements can be extended into the late Pliocene, providing snapshots of climate during a era of global cooling.

via Nature|
#ch4#climate-science#co2
Antarctica’s Thwaites Drill Ends in Time Crunch, Not triumph
science5 months ago

Antarctica’s Thwaites Drill Ends in Time Crunch, Not triumph

British and South Korean scientists’ ambitious drill under Thwaites Glacier collapsed at the final step when the borehole refroze and entombed the instruments, forcing an abrupt end to a mission intended to install long‑term tidal‑water sensors. Earlier attempts did yield some preliminary measurements from beneath the glacier, revealing warm, turbulent waters that fuel its melt, but time and bad conditions prevented deployment of the moored instruments and completion of the study.

via The New York Times|
#antarctica#borehole#climate-science
Field Camp on Thwaites Glacier Launches Critical Ice‑Ocean Study
science5 months ago

Field Camp on Thwaites Glacier Launches Critical Ice‑Ocean Study

Weather delays finally allowed scientists to set up a field camp on Antarctica's fast-melting Thwaites Glacier. Over the coming weeks they will bore about half a mile into the ice to deploy instruments in the warming ocean beneath, seeking to understand how seawater is eroding the glacier and what its collapse could mean for global sea levels. The temporary camp includes ten single-occupancy tents, a science tent and two toilet tents after helicopter landings were previously blocked by clouds.

via The New York Times|
#antarctica#climate-science#glaciology