ScienceDaily: Top Environment News


Scientists use nuclear physics to probe Floridan Aquifer threatened by climate change

Posted: 30 Sep 2021 01:04 PM PDT

Scientists used a nuclear dating technique to study the dynamics of the Floridan Aquifer. The findings show the promise of this emerging technique to help understand geological processes and to forecast the effects of climate change on coastal aquifers.

Study on African buffalo offers insights on persistence of highly contagious pathogens

Posted: 30 Sep 2021 01:04 PM PDT

A new study on foot-and-mouth disease among buffalo in South Africa could help explain how certain extremely contagious pathogens are able to persist and reach endemic stage in a population, long after they've burned through their initial pool of susceptible hosts.

New analytical technique helps researchers spot subtle differences in subcellular chemistry

Posted: 30 Sep 2021 10:48 AM PDT

Researchers can now rapidly isolate and chemically characterize individual organelles within cells. The new technique tests the limits of analytical chemistry and rapidly reveals the chemical composition of organelles that control biological growth, development and disease.

Bigleaf maple decline tied to hotter, drier summers in Washington state, U.S.

Posted: 30 Sep 2021 08:11 AM PDT

A new study has found that recent bigleaf maple die-off in Washington is linked to hotter, drier summers that predispose this species to decline. These conditions essentially weaken the tree's immune system, making it easier to succumb to other stressors and diseases.

Encourage wealthy and well-connected to use their influence to tackle climate change

Posted: 30 Sep 2021 08:11 AM PDT

A paper article identifies five ways that people of high socioeconomic status have a disproportionate impact on global greenhouse gas emissions - and therefore an outsized responsibility to facilitate progress in climate change mitigation.

Gene found in monkeys and mice could work as a new type of antiviral to block HIV, Ebola, and other deadly viruses in humans

Posted: 30 Sep 2021 08:11 AM PDT

A nationwide team of researchers has determined how a genetic mutation found in mice and monkeys interferes with viruses such as HIV and Ebola. They say the finding could eventually lead to the development of medical interventions in humans.

Earth is dimming due to climate change

Posted: 30 Sep 2021 07:48 AM PDT

Researchers used decades of measurements of earthshine -- the light reflected from Earth that illuminates the surface of the Moon to find that there has been a significant drop in Earth's reflectance over the past two decades. The Earth is now reflecting about half a watt less light per square meter than it was 20 years ago, with most of the drop occurring in the last three years.

Cell labelling method from microscopy adapted for use in whole-body imaging

Posted: 30 Sep 2021 07:48 AM PDT

Scientist have utilized so-called SNAP-tag technology to radioactively label cells in living organisms. In a proof-of-principle study they developed a SNAP-tag substrate equipped with the radioactive signal emitter fluorine-18 and used it to make tumor cells in the bodies of mice visible in PET images. The labeling method, already established in microscopy, opens up the prospect of studying cells with different imaging techniques and at different temporal stages -- for example, when inflammation begins, continues and resolves again. This may help reveal more about how the functions of individual cells and entire organs are interconnected.

Cats' whiskers reveal felines favor free lunch

Posted: 30 Sep 2021 07:48 AM PDT

Domestic cats that regularly catch wild animals still get most of their nutrition from food provided at home, new research shows.

Primordial ‘hyper-eye’ discovered

Posted: 30 Sep 2021 07:14 AM PDT

Trilobites of the suborder Phacopina had a unique eye in which about 200 large lenses in each eye spanned at least six individual facets, each of which in turn formed its own small compound eye.

Coral microbiome is key to surviving climate change

Posted: 30 Sep 2021 05:24 AM PDT

The microbiomes of corals -- which comprise bacteria, fungi and viruses -- play an important role in the ability of corals to tolerate rising ocean temperatures, according to new research. The team also identified several genes within certain corals and the symbiotic photosynthetic algae that live inside their tissues that may play a role in their response to heat stress. The findings could inform current coral reef conservation efforts, for example, by highlighting the potential benefits of amending coral reefs with microbes found to bolster corals' heat-stress responses.

Critical groundwater supplies may never recover from drought

Posted: 30 Sep 2021 05:23 AM PDT

New research shows groundwater takes an average of three years to recover from drought -- if it ever recovers at all. In the largest study of its kind, scientists found that this recovery time only applies to aquifers that aren't touched by human activity, and the recovery time might be even longer in regions with excessive pumping.

Groundwater markets could promote solutions to the West’s water woes

Posted: 29 Sep 2021 09:58 AM PDT

Amid historic drought and changing rainfall patterns, a groundwater market in the California desert could serve as a template for the future of water management.

Intermittent fasting makes fruit flies live longer — will it work for people?

Posted: 29 Sep 2021 09:43 AM PDT

Intermittent fasting is a trendy weight loss strategy. A new study of fasting fruit flies shows how the diet, if properly timed, also slows the aging process and increases longevity by cleaning our cells.

Dramatic liana increases in old-growth tropical forests associated to natural disturbance and climate change

Posted: 29 Sep 2021 08:28 AM PDT

The accelerated proliferation of lianas in old-growth forest due to natural disturbance may be altering forest structure, regeneration, and functioning.