Hacker News
- Interstellar object ‘Oumuamua is likely a chunk of nitrogen ice https://news.agu.org/press-release/interstellar-object-oumuamua-is-likely-a-piece-of-a-pluto-like-planet 3 comments
- Scientists find massive reserves of mercury in permafrost https://news.agu.org/press-release/scientists-find-massive-reserves-of-mercury-hidden-in-permafrost/ 101 comments
- Lakes turning green, where have I seen that before? https://news.agu.org/press-release/climate-change-is-making-lakes-less-blue 5 comments factorio
- If global warming persists, blue lakes worldwide are at risk of turning green-brown, according to a new study which presents the first global inventory of lake color. Shifts in lake water color can indicate a loss of ecosystem health https://news.agu.org/press-release/climate-change-is-making-lakes-less-blue 43 comments science
- Climate change is shrinking and fragmenting salmon habitat, study finds https://news.agu.org/press-release/climate-change-is-shrinking-and-fragmenting-salmon-habitat/ 2 comments science
- Earliest geochemical evidence of plate tectonics found in 3.8-billion-year-old crystal. Tiny zircons found in South Africa point to an early start for the active global process that shapes Earth’s surface and climate. https://news.agu.org/press-release/earliest-geochemical-evidence-of-plate-tectonics-found-in-3-8-billion-year-old-crystal/ 2 comments science
- Ancient, primordial helium (Helium-3), a rare isotope of helium gas that was forged in the wake of the Big Bang , is leaking out of Earth’s core. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside a solar nebula, which has long been debated. https://news.agu.org/press-release/ancient-helium-leaking-from-core-offers-clues-of-earths-formation 57 comments science
- US household air conditioning use could exceed electric capacity in next decade due to climate change. Average U.S. households can expect up to 8 days without air conditioning during summer heat if steps are not taken to expand capacity, increase efficiency and mitigate climate change. https://news.agu.org/press-release/us-household-air-conditioning-use-could-exceed-electric-capacity-in-next-decade-due-to-climate-change/ 2339 comments science
- A lightning strike that lit up the sky across three US states has been confirmed as the longest on record, with the World Meteorological Organization (WMO) certifying the 768-km (477-mile) length of the flash that occurred back in April 2020. https://news.agu.org/press-release/new-studies-shine-light-on-bright-lightning-superbolts/ 28 comments science
- The rates of death and health burdens associated with air pollution are borne unequally and inequitably by people of color and those with lower household income and educational attainment in Washington, D.C., according to a new study. https://news.agu.org/press-release/air-pollution-disproportionally-affects-people-of-color-lower-income-residents-in-d-c/ 4 comments science
- 1,000 years of glacial ice reveal ‘prosperity and peril’ in Europe. Pollen from the introduction of non-native crops was found to go back at least 100 years ago and pollution from the burning of fossil fuels shows up in the 18th century, about 100 years earlier than expected. https://news.agu.org/press-release/1000-years-of-glacial-ice-reveal-prosperity-and-peril-in-europe/ 3 comments science
- US-wide, non-white neighborhoods are hotter than white ones Wealthier, whiter urban and small-town residents benefit more from cooling infrastructure and trees https://news.agu.org/press-release/us-wide-non-white-neighborhoods-are-hotter-than-white-ones/ 213 comments science
- Adopting a plant-based diet can help shrink a person’s carbon footprint. However, improving efficiency of livestock production will be a more effective strategy for reducing emissions, as advances in farming have made it possible to produce meat, eggs and milk with a smaller methane footprint. https://news.agu.org/press-release/efficient-meat-and-dairy-farming-needed-to-curb-methane-emissions-study-finds/ 3806 comments science
- New study predicts coastal protection could limit migration to 17 to 72 million people during the 21st century—less than half of some previous estimates. From a purely economic point of view, it makes sense to protect about 3% of global coastline—mainly around densely populated cities & floodplains. https://news.agu.org/press-release/coastal-protection-can-significantly-reduce-migration-from-sea-level-rise/ 3 comments science
- 4,300 year old guano deposit shows changes in bat diet and environment over time. Bat diet alternated between periods of increased fruit relative to insect consumption, favoring a fruit‐based diet during warmer and drier periods. https://news.agu.org/press-release/poop-core-records-4300-years-of-bat-diet-and-environment/ 7 comments science
- Lightning strikes in the Arctic tripled from 2010 to 2020, a finding researchers attribute to rising temperatures due to human-caused climate change. The results suggest Arctic residents in northern Russia, Canada, Europe and Alaska need to prepare for the danger of more frequent lightning strikes. https://news.agu.org/press-release/warming-temperatures-tripled-arctic-lightning-strikes-over-the-past-decade/ 11 comments science
- Interstellar object ‘Oumuamua is likely a piece of a Pluto-like planet https://news.agu.org/press-release/interstellar-object-oumuamua-is-likely-a-piece-of-a-pluto-like-planet 910 comments space
- Without efforts to mitigate climate change, summers spanning nearly six months may become the new normal by 2100 in the Northern Hemisphere, according to a new study. The change would likely have far-reaching impacts on agriculture, human health and the environment, according to the study authors. https://news.agu.org/press-release/northern-hemisphere-summers-may-last-nearly-half-the-year-by-2100/ 24 comments science
- Cluster of Alaskan Islands could be single interconnected Supervolcano https://news.agu.org/press-release/cluster-of-alaskan-islands-could-be-single-interconnected-giant-volcano/ 4 comments science
- The tropics are expanding, and climate change is the primary culprit https://news.agu.org/press-release/the-tropics-are-expanding-and-climate-change-is-the-primary-culprit/ 5 comments worldnews
- COVID-19 lockdowns significantly impacting global air quality. Nitrogen dioxide pollution over northern China, Western Europe and the U.S. decreased by as much as 60 percent in early 2020 as compared to the same time last year. https://news.agu.org/press-release/covid-19-lockdowns-significantly-impacting-global-air-quality/ 532 comments science
- Climate change could kill Earth's coral reefs by 2100. About 70-90% of all existing coral reefs are expected to disappear in the next 20 years due to warming oceans, acidic water and pollution https://news.agu.org/press-release/warming-acidic-oceans-may-nearly-eliminate-coral-reef-habitats-by-2100/ 10 comments worldnews
- Climate change could kill Earth's coral reefs by 2100. About 70-90% of all existing coral reefs are expected to disappear in the next 20 years due to warming oceans, acidic water and pollution https://news.agu.org/press-release/warming-acidic-oceans-may-nearly-eliminate-coral-reef-habitats-by-2100/ 6 comments environment
- The oldest and thickest Arctic sea ice is disappearing twice as fast as ice in the rest of the Arctic Ocean. If sea ice is thinner and moving faster, pieces at the margins will flow first into the open ocean, followed by larger bits from the center, like a big traffic jam. https://news.agu.org/press-release/last-arctic-ice-refuge-is-disappearing/ 324 comments science
- “Bathtub rings” around Titan’s lakes might be made of alien crystals. The frigid lakeshores of Saturn’s moon Titan might be encrusted with strange, unearthly minerals, according to new research. https://news.agu.org/press-release/bathtub-rings-around-titans-lakes-might-be-made-of-alien-crystals/ 11 comments space
- Radioactive carbon from nuclear bomb tests found in deep ocean trenches https://news.agu.org/press-release/radioactive-carbon-from-nuclear-bomb-tests-found-in-deep-ocean-trenches/ 9 comments science
- Scientists track giant ocean vortex from space https://news.agu.org/press-release/scientists-track-giant-ocean-vortex-from-space/ 9 comments science
- A new study shows extreme heat events both in the summer and in the winter are increasing across the U.S. and Canada, while extreme cold events in summer and winter are declining. Both relative and absolute extreme heat events have increased across the US and Canada since 1980. https://news.agu.org/press-release/extreme-heat-increasing-both-summer-and-winter/ 14 comments science
- Anthropogenic climate change is making night-shining clouds more visible: Study finds an increase in atmospheric methane since the late 1800s has significantly increased the amount of water vapor in the middle atmosphere, making ice crystals larger and noctilucent clouds more visible. https://news.agu.org/press-release/climate-change-is-making-night-shining-clouds-more-visible/ 7 comments science
- Researchers have discovered permafrost in the northern hemisphere stores massive amounts of natural mercury, a finding with significant implications for human health and ecosystems worldwide https://news.agu.org/press-release/scientists-find-massive-reserves-of-mercury-hidden-in-permafrost/ 6 comments worldnews
- New research shows algae growing on the Greenland ice sheet, the Earth’s second-largest ice sheet, significantly reduce the surface reflectivity of the ice sheet’s bare ice area and contribute more to its melting than dust or black carbon. https://news.agu.org/press-release/algae-growth-reduces-reflectivity-enhances-greenland-ice-sheet-melting/#.wjqzndrfrzc.twitter 15 comments science
- A recent study provides new evidence that the icy shell of Jupiter’s moon Europa may have plate tectonics similar to those on Earth. The presence of plate tectonic activity could have important implications for the possibility of life in the ocean thought to exist beneath the moon’s surface. https://news.agu.org/press-release/research-bolsters-possibility-of-plate-tectonics-on-europa/ 3 comments science
- Flights face increased risk of severe turbulence due to climate change https://news.agu.org/press-release/flights-worldwide-face-increased-risk-of-severe-turbulence-due-to-climate-change/ 4 comments science
- It is “extremely unlikely” 2014, 2015 and 2016 would have been the warmest consecutive years on record without the influence of human-caused climate change: Human-caused warming likely led to recent streak of record-breaking temperatures, new study finds http://news.agu.org/press-release/human-caused-warming-likely-led-to-recent-streak-of-record-breaking-temperatures-new-study-finds/ 30 comments science
- Glaciologists have uncovered large valleys in the ocean floor beneath some of the massive glaciers flowing into the Amundsen Sea in West Antarctica. The troughs enable warm, salty water to reach the undersides of glaciers, fueling their increasingly rapid retreat. http://news.agu.org/press-release/researchers-find-seafloor-valleys-below-west-antarctic-glaciers/?utm_source=cpre&utm_medium=email&utm_campaign=press%20releases&utm_content=17-04%20amundsen%20sea%20glaciers&hootpostid=8df34a27403c686f09c478e95b0b9446 22 comments science
- Bubble plumes off Washington, Oregon suggest warmer ocean may be releasing frozen methane http://news.agu.org/press-release/bubble-plumes-off-washington-oregon-suggest-warmer-ocean-may-be-releasing-frozen-methane/ 255 comments worldnews
- New research reveals Europa's mystery dark material could be sea salt http://news.agu.org/press-release/new-research-reveals-europas-mystery-dark-material-could-be-sea-salt/ 7 comments science
- Ozone pollution in India kills enough crops to feed 94 million in poverty http://news.agu.org/press-release/ozone-pollution-in-india-kills-enough-crops-to-feed-94-million-in-poverty/ 7 comments india
- Voyager spacecraft might not have reached interstellar space http://news.agu.org/press-release/voyager-spacecraft-might-not-have-reached-interstellar-space/ 12 comments science
- Scientists reconstruct ancient impact that dwarfs dinosaur-extinction blast http://news.agu.org/press-release/scientists-reconstruct-ancient-impact-that-dwarfs-dinosaur-extinction-blast/ 4 comments space