#science and environment

[cgandrews3]

#animal sight #biodiversity #bioluminescence #birds #butterflies #candice gaukel andrews #environment #eyes #genetics #landscapes #natural habitat adventures #nathab #natural habitats #nature #octopus #predators #science #science and environment #scientific research #vision #wildlife #wwf #world wildlife fund

[wachinyeya]

Pair of Endangered Corpse Flowers Defy Odds to Bloom at Same Time–Now Bearing 700 Seeds https://www.goodnewsnetwork.org/pair-of-endangered-corpse-flowers-defy-odds-to-bloom-at-same-time-now-bearing-700-seeds/

#good news #environmentalism #science #nature #environment #corpse flower #flowers #botany

[whoisandyloam]

#watershed #rivers #ecology #environment #science memes #nerd shit #shitpost #marine memes

[pasquines]

#Federal Government #Guam #Science and Environment #Biden-Harris Administration #CBS News #Chris Budasi #Environmental Protection Agency #Guam Waterworks Authority #Jeanet Babauta Owens #Michael S. Regan #Pacific Daily News #PFAS

[politijohn]

Source

More of this

#government #environment #environmentalism #environmetalists #climate science #climate activism #news #current events #Europe #the left #progressive

[rebeccathenaturalist]

A study that just came out demonstrates that outdoor cats are known to prey on over two thousands species of wild animal, from mammals to birds to insects. That includes 347 species that are endangered, threatened or otherwise of concern, and they've been a key factor of the permanent extinction of over 60 species. And while cats may not always bring home what they catch, chances are if your cat is allowed to roam unsupervised outside, they're killing your local wildlife.

Why is this so important? Worldwide, wild animal populations have decreased in number by 69% in the past fifty years; that means that in my lifetime (born in 1978), the sheer number of wild animals in the world has been decreased by over half. Even "common" wild species are less numerous than before. While habitat population is the single biggest cause of species endangerment and extinction overall, outdoor and indoor/outdoor cats are a significant cause as well. In fact, they are the single biggest cause of human-caused mortality in wild birds.

Most importantly, it's very, very simple to fix this problem: keep your cats indoors, and spay and neuter them. If your cat is bored, they need more enrichment, and there are plenty of ways to make your home more exciting for them, from bringing home cardboard boxes for them to explore, to playing with them more often. If you want your cat to get some outdoor enrichment, leash train them (yes, it can be done!) If you have the space and resources, build them a catio where they can be safe from outdoor dangers like predators and cars, while also keeping local wildlife safe from them.

If you just give into their whining and pawing at the door, then they know that that's what they have to do to get their way; I know it's a tough transition, but it's worth it in the end for everyone involved. Cats are domesticated, which means they are not native anywhere in the world; there are exactly zero ecosystems in which they belong, save for the safety of your home. It is your responsibility to give them an enriching environment without taking the shortcut of letting them go wreak havoc outside.

#cats #outdoor cats #feral cats #nature #wildlife #animals #ecology #environment #conservation #science #scicomm #birds #endangered species #extinction #domesticated animals #domestication #biology #animal behavior #animal welfare

[considernature]

EEEEEEEE EEEEEEEEE EEEEEEE

That's right! It's International Bat Appreciation Day! We share our planet with over 1400 species of bat, making the second most abundant mammal order, and they perform a wide variety of ecological roles, from dispersing seeds to pollinating flowers to eating thousands of insects in a single night! Over 200 bat species are listed as Threatened by the International Union for the Conservation of Nature--that is over 14 percent of all bats!

YOU can help endangered bats today by donating to Pennsylvania Bat Rescue at this link. This PA-based organization rehabilitates sick or injured bats and helps educate people like you and me in how we can create more bat-friendly environments.

If you want to learn about particularly-cool bat species native to New Zealand, check out this Consider Nature article on the Pekapeka, the bat that walks:

For the rest of the day, Consider Nature will be bat-bombing Tumblr with some of our favorite bat species to share them with the world!

Alt text: a small brown bat stretching its wings with the kind of fabulous flourish that would impress Ryan Evans.

#animals #nature #science #biology #wildlife #conservation #environment #bats #international bat appreciation day #batbombing

[nasa]

Confirmed: Summer 2023 Hottest in NASA’s Record

All three months of summer 2023 broke records. July 2023 was the hottest month ever recorded, and the hottest July. June 2023 was the hottest June, and August 2023 was the hottest August.

NASA’s temperature record, GISTEMP, starts in 1880, when consistent, modern recordkeeping became possible. Our record uses millions of measurements of surface temperature from weather stations, ships and ocean buoys, and Antarctic research stations. Other agencies and organizations who keep similar global temperature records find the same pattern of long-term warming.

Global temperatures are rising from increased emissions of greenhouse gasses, like carbon dioxide and methane. Over the last 200 years, humans have raised atmospheric CO2 by nearly 50%, primarily through the burning of fossil fuels.

Drivers of climate change, both natural and human-caused, leave distinct fingerprints. Through observations and modeling, NASA researchers confirm that the current warming is the result of human activities, particularly increased greenhouse gas emissions.

#climate #climate change #NASA #earth #summer #global warming #climate science #temperature #environment

[mindblowingscience]

"Eco-friendly" paper drinking straws contain long-lasting and potentially toxic chemicals, a new study has concluded. In the first analysis of its kind in Europe, and only the second in the world, Belgian researchers tested 39 brands of straws for the group of synthetic chemicals known as poly- and perfluoroalkyl substances (PFAS). PFAS were found in the majority of the straws tested and were most common in those made from paper and bamboo, found the study, published in Food Additives & Contaminants. PFAS are used to make everyday products, from outdoor clothing to non-stick pans, resistant to water, heat and stains. However, they are potentially harmful to people, wildlife and the environment. They break down very slowly over time and can persist over thousands of years in the environment, a property that has led to them being known as "forever chemicals." They have been associated with a number of health problems, including lower response to vaccines, lower birth weight, thyroid disease, increased cholesterol levels, liver damage, kidney cancer and testicular cancer.

Continue Reading.

#Paper straws #Plastic Straws #Straws #Science #Chemistry #environment #stem

[maaarine]

Mystery of why Roman buildings have survived so long has been unraveled, scientists say (Katie Hunt, CNN, Jan 06 2023)

“Roman concrete, in many cases, has proven to be longer-lasting than its modern equivalent, which can deteriorate within decades.

Now, scientists behind a new study say they have uncovered the mystery ingredient that allowed the Romans to make their construction material so durable and build elaborate structures in challenging places such as docks, sewers and earthquake zones.

The study team, including researchers from the United States, Italy and Switzerland, analyzed 2,000-year-old concrete samples that were taken from a city wall at the archaeological site of Privernum, in central Italy, and are similar in composition to other concrete found throughout the Roman Empire.

They found that white chunks in the concrete, referred to as lime clasts, gave the concrete the ability to heal cracks that formed over time.

The white chunks previously had been overlooked as evidence of sloppy mixing or poor-quality raw material.

"For me, it was really difficult to believe that ancient Roman (engineers) would not do a good job because they really made careful effort when choosing and processing materials," said study author Admir Masic, an associate professor of civil and environmental engineering at the Massachusetts Institute of Technology. (…)

Additional analysis of the concrete showed that the lime clasts formed at extreme temperatures expected from the use of quicklime, and "hot mixing" was key to the concrete's durable nature.

"The benefits of hot mixing are twofold," Masic said in a news release.

"First, when the overall concrete is heated to high temperatures, it allows chemistries that are not possible if you only used slaked lime, producing high-temperature-associated compounds that would not otherwise form.

Second, this increased temperature significantly reduces curing and setting times since all the reactions are accelerated, allowing for much faster construction."

To investigate whether the lime clasts were responsible for Roman concrete's apparent ability to repair itself, the team conducted an experiment.

They made two samples of concrete, one following Roman formulations and the other made to modern standards, and deliberately cracked them.

After two weeks, water could not flow through the concrete made with a Roman recipe, whereas it passed right through the chunk of concrete made without quicklime.

Their findings suggest that the lime clasts can dissolve into cracks and recrystallize after exposure to water, healing cracks created by weathering before they spread.

The researchers said this self-healing potential could pave the way to producing more long-lasting, and thus more sustainable, modern concrete.

Such a move would reduce concrete's carbon footprint, which accounts for up to 8% of global greenhouse gas emissions, according to the study.

For many years, researchers had thought that volcanic ash from the area of Pozzuoli, on the Bay of Naples, was what made Roman concrete so strong.

This kind of ash was transported across the vast Roman empire to be used in construction, and was described as a key ingredient for concrete in accounts by architects and historians at the time.

Masic said that both components are important, but lime was overlooked in the past.”

#article #science #environment

[cgandrews3]

#africa #alaska #antarctica #anthropocene #aurora australis #aurora borealis #candice gaukel andrews #envrionment #lunar anthropocene #moon #moon landing #natural habitat adventures #nathab #nature #northern lights #outer space #picket fence lights #science #science and environment #scientific research #seven natural wonders of the world #southern lights #STEVE #world wildlife fund #wwf

[wachinyeya]

#anteaters #brazil #silky anteater #good news #nature #science #environmentalism #environment #animals #climate change #conservation #cute

[without-ado]

A lesson on the greenhouse effect; Dr. Carl Sagan testified before Congress in 1985 on climate change l carlsagandotcom/full vid

#climate change #greenhouse effect #earth #climate crisis #environment #carl sagan #informative #science #planets #greenhouse gases #global warming

[pasquines]

#Federal Government #Puerto Rico #Science and Environment #Centers for Disease Control and Prevention #Contextomy #Dengue virus #public health #Puerto Rico Department of Health

[daloy-politsey]

Reblog this and put in the tags what country you’re from and all the science classes you took in high school (for non Americans that’s approximately when you’re 14, 15, 16, and 17 years old)

#united states #living environment (basically biology) #earth science #chemistry #physics

[rebeccathenaturalist]

Okay, I know people as a general rule tend to not care about invertebrates as much as cute, fuzzy mammals, but this is a must-read if you care about animal welfare. The short version is that horseshoe crab blood has been used for decades in medicine as a way to test whether something is truly sterile; the blood clots in the presence of bacteria. Since then millions of horseshoe crabs have been captured and drained of blood, even though a synthetic alternative was developed a few years ago.

They go through a pretty brutal experience in the process. They're caught by fishermen who often throw them by their tails into a pile in the open air, and they're then trucked to a bleeding facility where they're strapped down and their blood is removed with needles jabbed directly into their hearts. Over half their blood may be taken, after which they're supposed to be returned to the ocean. However, it's likely many of them never make it back, instead turned into fish bait and sold by the same fishermen who caught them in the first place.

Apart from the fact that this is a horrific thing to put any animal through, the attrition due to fatalities has put a serious dent in horseshoe crab numbers. This is compounded by massive habitat loss, pollution, and the capture of horseshoe crabs as food, particularly as the females of one species are considered a delicacy. And other animals that rely on horseshoe crabs are suffering, too. The American rufa subspecies of the red knot, a medium-sized shorebird, is critically endangered as the horseshoe crab eggs it must have in order to successfully complete migration have become increasingly scarce, and it is likely the bird will become extinct if trends continue.

While there are guidelines for medical horseshoe crab harvest, they're considered optional. The few laws that exist are poorly enforced. Short of a complete ban on horseshoe crab blood in favor of the synthetic alternative, these animals are in very real danger of going extinct after a history spanning over 400 million years on this planet.

Thankfully, this article is not the first to bring forth the issues surrounding horseshoe crab harvest. Here are a few resources for further information and action (US based, though horseshoe crabs are threatened throughout their entire range):

Horseshoe Crab Conservation Network - https://horseshoecrab.org/conservation/

Wetlands Institute - https://wetlandsinstitute.org/conservation/horseshoe-crab-conservation/

Horseshoe Crab Recovery Coalition - https://hscrabrecovery.org/

#animal welfare #animal cruelty #cw animal cruelty #animal suffering #horseshoe crabs #invertebrates #wildlife #animals #environment #conservation #endangered species #extinction #nature #medicine #science #scicomm #science communication