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ecoamerica · 1 month

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Watch the 2024 American Climate Leadership Awards for High School Students now: https://youtu.be/5C-bb9PoRLc

The recording is now available on ecoAmerica's YouTube channel for viewers to be inspired by student climate leaders! Join Aishah-Nyeta Brown & Jerome Foster II and be inspired by student climate leaders as we recognize the High School Student finalists. Watch now to find out which student received the $25,000 grand prize and top recognition!

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reasonsforhope · 2 months

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"With “green corridors” that mimic the natural forest, the Colombian city is driving down temperatures — and could become five degrees cooler over the next few decades.

In the face of a rapidly heating planet, the City of Eternal Spring — nicknamed so thanks to its year-round temperate climate — has found a way to keep its cool.

Previously, Medellín had undergone years of rapid urban expansion, which led to a severe urban heat island effect — raising temperatures in the city to significantly higher than in the surrounding suburban and rural areas. Roads and other concrete infrastructure absorb and maintain the sun’s heat for much longer than green infrastructure.

“Medellín grew at the expense of green spaces and vegetation,” says Pilar Vargas, a forest engineer working for City Hall. “We built and built and built. There wasn’t a lot of thought about the impact on the climate. It became obvious that had to change.”

Efforts began in 2016 under Medellín’s then mayor, Federico Gutiérrez (who, after completing one term in 2019, was re-elected at the end of 2023). The city launched a new approach to its urban development — one that focused on people and plants.

The $16.3 million initiative led to the creation of 30 Green Corridors along the city’s roads and waterways, improving or producing more than 70 hectares of green space, which includes 20 kilometers of shaded routes with cycle lanes and pedestrian paths.

These plant and tree-filled spaces — which connect all sorts of green areas such as the curb strips, squares, parks, vertical gardens, sidewalks, and even some of the seven hills that surround the city — produce fresh, cooling air in the face of urban heat. The corridors are also designed to mimic a natural forest with levels of low, medium and high plants, including native and tropical plants, bamboo grasses and palm trees.

Heat-trapping infrastructure like metro stations and bridges has also been greened as part of the project and government buildings have been adorned with green roofs and vertical gardens to beat the heat. The first of those was installed at Medellín’s City Hall, where nearly 100,000 plants and 12 species span the 1,810 square meter surface.

“It’s like urban acupuncture,” says Paula Zapata, advisor for Medellín at C40 Cities, a global network of about 100 of the world’s leading mayors. “The city is making these small interventions that together act to make a big impact.”

At the launch of the project, 120,000 individual plants and 12,500 trees were added to roads and parks across the city. By 2021, the figure had reached 2.5 million plants and 880,000 trees. Each has been carefully chosen to maximize their impact.

“The technical team thought a lot about the species used. They selected endemic ones that have a functional use,” explains Zapata.

The 72 species of plants and trees selected provide food for wildlife, help biodiversity to spread and fight air pollution. A study, for example, identified Mangifera indica as the best among six plant species found in Medellín at absorbing PM2.5 pollution — particulate matter that can cause asthma, bronchitis and heart disease — and surviving in polluted areas due to its “biochemical and biological mechanisms.”

And the urban planting continues to this day.

The groundwork is carried out by 150 citizen-gardeners like Pineda, who come from disadvantaged and minority backgrounds, with the support of 15 specialized forest engineers. Pineda is now the leader of a team of seven other gardeners who attend to corridors all across the city, shifting depending on the current priorities...

“I’m completely in favor of the corridors,” says [Victoria Perez, another citizen-gardener], who grew up in a poor suburb in the city of 2.5 million people. “It really improves the quality of life here.”

Wilmar Jesus, a 48-year-old Afro-Colombian farmer on his first day of the job, is pleased about the project’s possibilities for his own future. “I want to learn more and become better,” he says. “This gives me the opportunity to advance myself.”

The project’s wider impacts are like a breath of fresh air. Medellín’s temperatures fell by 2°C in the first three years of the program, and officials expect a further decrease of 4 to 5C over the next few decades, even taking into account climate change. In turn, City Hall says this will minimize the need for energy-intensive air conditioning...

In addition, the project has had a significant impact on air pollution. Between 2016 and 2019, the level of PM2.5 fell significantly, and in turn the city’s morbidity rate from acute respiratory infections decreased from 159.8 to 95.3 per 1,000 people [Note: That means the city's rate of people getting sick with lung/throat/respiratory infections.]

There’s also been a 34.6 percent rise in cycling in the city, likely due to the new bike paths built for the project, and biodiversity studies show that wildlife is coming back — one sample of five Green Corridors identified 30 different species of butterﬂy.

Other cities are already taking note. Bogotá and Barranquilla have adopted similar plans, among other Colombian cities, and last year São Paulo, Brazil, the largest city in South America, began expanding its corridors after launching them in 2022.

“For sure, Green Corridors could work in many other places,” says Zapata."

-via Reasons to Be Cheerful, March 4, 2024

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english-history-trip · 11 months

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In 2020, for the first time since being laid in 1772, a section of a King’s College lawn the size of just half a football pitch was not mown. Instead, it was transformed into a colourful wildflower meadow filled with poppies, cornflowers and oxeye daisies.

[Researcher Dr Cicely Marshall] found that as well as being a glorious sight, the meadow had boosted biodiversity and was more resilient than lawn to our changing climate. The results are published today in the journal Ecological Solutions and Evidence. Despite its size, the wildflower meadow supported three times more species of plants, spiders and bugs than the remaining lawn - including 14 species with conservation designations, compared with six in the lawn.

The meadow was found to have another climate benefit: it reflected 25% more sunlight than the lawn, helping to counteract what’s known as the ‘urban heat island’ effect. Cities tend to heat up more than rural areas, so reflecting more sunlight can have a cooling effect - useful in our increasingly hot summers. “Cambridge has become more prone to drought, and last summer most of the College’s fine lawns died. It’s really expensive to maintain these lawns, which have to be re-sown if they die off. But the meadow just looked after itself,” says Marshall.

#Down With Lawns #the article has a bunch more including tips on starting your own meadow #environmental news

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todaysbird · 1 year

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(article here but it has a paywall)

#pollution #environment #environmental news #tw illness #tw news #ask to tag

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alexxahope · 6 months

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Instead of watching American Climate Leadership, watch me for free. And give yourself a good pleasure 🥵🥵

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lookingforcactus · 1 year

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“How do you supercharge vegetation growth for a reforestation project? Bring in the microorganisms.

That’s the finding from a new study, which shows that incorporating a microbial community of fungi, bacteria, algae and archaea into ecosystem restoration can accelerate plant biomass production by 64% on average.

Researchers say this application holds plenty of promise for restoration work in Southeast Asia, where large swaths of once-forested landscapes have been degraded for large-scale agriculture.

Soil microbiome like fungi carry out a critical task known as soil transplant, moving soil and associated microbial communities from one location to another. But they’re often overlooked in conservation and restoration efforts, said study lead author Colin Averill, a senior microbial and ecosystem scientist at the Swiss Federal Institute of Technology, or ETH Zürich.

“When we think to plant a tree, we never think to ‘plant’ the microbiome, right? But what if we did?” Averill told Mongabay.

To find out how big a role the microbiome plays in ecosystem restoration, Averill and colleagues from ETH Z��rich, the Czech Academy of Sciences in Prague and Vrije Universiteit in the Netherlands pored over the date from 27 restoration projects that incorporated microbial restoration.

Their study, published in the journal Nature Microbiology, found that across all the restoration works, there was an average of 64% increase of plant growth. In one case, plant growth was stimulated by 700%.

The study shows that incorporating the microbiome in managed landscapes like farmland and forestry concessions has the greatest potential. This is because managed landscapes account for the majority of human land use, covering half of the global habitable land surface.

But by introducing microbial communities, these agricultural and forestry plantations [and monocultures] that are currently devoid of biodiversity could become reservoirs of it, Averill said.

To increase biodiversity and enrich these managed landscapes, it’s important to avoid using single species or very low-diversity, non-native soil organisms at a large scale, Averill said.

The study notes an increasing number of microbial inoculant companies advocating for just this on the argument that it could improve crop yields. But the mass application of a single species could lead to a loss of genetic and ecological diversity, and is unlikely to account for ecosystem-specific requirements, the study says.

It instead recommends using locally sourced, native and biodiverse communities of soil organisms as these can promote biodiversity in managed landscapes without limiting crop yields.” -via Mongabay, 1/5/23

#mongabay #mongabay environmental news #environmental news #conservation news #fungi #microbiome #monoculture #agriculture #reforestation #forest restoration #southeast asia #good news #hope #microorganisms

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boomershroomer · 6 months

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This time-lapse was taken over 7 days with a GoPro. Genetics https://mushroomresercheshop.com/

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thedisablednaturalist · 7 months

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I listen to NPRs environmental articles in the morning for my alarm, and today's about key deer in Florida really brought up a very good point.

Humans have done so much to negatively impact our environment. That means we also have the power to change it in a positive way as well.

#wrenfea.exe #environmental news #positive news #earth positive #earth optimism #climate optimism #environmental optimism

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thescrcservices · 20 days

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May this International Labour Day bring you renewed energy and motivation to pursue your goals with passion and dedication.

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troythecatfish · 8 months

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pepsijob45698 · 2 days

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pepsi work from home

Looking for flexible work opportunities that allow you to balance your career with your lifestyle? Look no further! Pepsi is offering exciting work-from-home positions, both part-time and full-time, enabling you to join their dynamic team from the comfort of your own home. With competitive compensation packages, extensive training, and support resources, Pepsi's remote jobs provide the autonomy and flexibility you need to thrive professionally while enjoying the convenience of eliminating commute time and expenses. Join a global brand known for its innovation and excellence, and embark on a rewarding career journey with Pepsi from anywhere in the world. Don't miss out on this chance to achieve work-life balance and make a meaningful impact – apply for Pepsi's work-from-home positions today! Here Are All Details

#ACLA24 #ACLA24Leaders #youtube #youtube video #climate leaders #climate solutions #climate and environment #climate change #climate and health #climate blog #climate news #weather and climate #environmental news #environment #environmental awareness #environment and health #environmental issues #environmental justice #environment protection

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ecoamerica · 2 months

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youtube

Watch the American Climate Leadership Awards 2024 now: https://youtu.be/bWiW4Rp8vF0?feature=shared

The American Climate Leadership Awards 2024 broadcast recording is now available on ecoAmerica's YouTube channel for viewers to be inspired by active climate leaders. Watch to find out which finalist received the $50,000 grand prize! Hosted by Vanessa Hauc and featuring Bill McKibben and Katharine Hayhoe!

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reasonsforhope · 2 months

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As relentless rains pounded LA, the city’s “sponge” infrastructure helped gather 8.6 billion gallons of water—enough to sustain over 100,000 households for a year.

Earlier this month, the future fell on Los Angeles. A long band of moisture in the sky, known as an atmospheric river, dumped 9 inches of rain on the city over three days—over half of what the city typically gets in a year. It’s the kind of extreme rainfall that’ll get ever more extreme as the planet warms.

The city’s water managers, though, were ready and waiting. Like other urban areas around the world, in recent years LA has been transforming into a “sponge city,” replacing impermeable surfaces, like concrete, with permeable ones, like dirt and plants. It has also built out “spreading grounds,” where water accumulates and soaks into the earth.

With traditional dams and all that newfangled spongy infrastructure, between February 4 and 7 the metropolis captured 8.6 billion gallons of stormwater, enough to provide water to 106,000 households for a year. For the rainy season in total, LA has accumulated 14.7 billion gallons.

Long reliant on snowmelt and river water piped in from afar, LA is on a quest to produce as much water as it can locally. “There's going to be a lot more rain and a lot less snow, which is going to alter the way we capture snowmelt and the aqueduct water,” says Art Castro, manager of watershed management at the Los Angeles Department of Water and Power. “Dams and spreading grounds are the workhorses of local stormwater capture for either flood protection or water supply.”

Centuries of urban-planning dogma dictates using gutters, sewers, and other infrastructure to funnel rainwater out of a metropolis as quickly as possible to prevent flooding. Given the increasingly catastrophic urban flooding seen around the world, though, that clearly isn’t working anymore, so now planners are finding clever ways to capture stormwater, treating it as an asset instead of a liability. “The problem of urban hydrology is caused by a thousand small cuts,” says Michael Kiparsky, director of the Wheeler Water Institute at UC Berkeley. “No one driveway or roof in and of itself causes massive alteration of the hydrologic cycle. But combine millions of them in one area and it does. Maybe we can solve that problem with a thousand Band-Aids.”

Or in this case, sponges. The trick to making a city more absorbent is to add more gardens and other green spaces that allow water to percolate into underlying aquifers—porous subterranean materials that can hold water—which a city can then draw from in times of need. Engineers are also greening up medians and roadside areas to soak up the water that’d normally rush off streets, into sewers, and eventually out to sea...

To exploit all that free water falling from the sky, the LADWP has carved out big patches of brown in the concrete jungle. Stormwater is piped into these spreading grounds and accumulates in dirt basins. That allows it to slowly soak into the underlying aquifer, which acts as a sort of natural underground tank that can hold 28 billion gallons of water.

During a storm, the city is also gathering water in dams, some of which it diverts into the spreading grounds. “After the storm comes by, and it's a bright sunny day, you’ll still see water being released into a channel and diverted into the spreading grounds,” says Castro. That way, water moves from a reservoir where it’s exposed to sunlight and evaporation, into an aquifer where it’s banked safely underground.

On a smaller scale, LADWP has been experimenting with turning parks into mini spreading grounds, diverting stormwater there to soak into subterranean cisterns or chambers. It’s also deploying green spaces along roadways, which have the additional benefit of mitigating flooding in a neighborhood: The less concrete and the more dirt and plants, the more the built environment can soak up stormwater like the actual environment naturally does.

As an added benefit, deploying more of these green spaces, along with urban gardens, improves the mental health of residents. Plants here also “sweat,” cooling the area and beating back the urban heat island effect—the tendency for concrete to absorb solar energy and slowly release it at night. By reducing summer temperatures, you improve the physical health of residents. “The more trees, the more shade, the less heat island effect,” says Castro. “Sometimes when it’s 90 degrees in the middle of summer, it could get up to 110 underneath a bus stop.”

LA’s far from alone in going spongy. Pittsburgh is also deploying more rain gardens, and where they absolutely must have a hard surface—sidewalks, parking lots, etc.—they’re using special concrete bricks that allow water to seep through. And a growing number of municipalities are scrutinizing properties and charging owners fees if they have excessive impermeable surfaces like pavement, thus incentivizing the switch to permeable surfaces like plots of native plants or urban gardens for producing more food locally.

So the old way of stormwater management isn’t just increasingly dangerous and ineffective as the planet warms and storms get more intense—it stands in the way of a more beautiful, less sweltering, more sustainable urban landscape. LA, of all places, is showing the world there’s a better way.

-via Wired, February 19, 2024

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english-history-trip · 2 years

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Three bison were released in Kent in July but, unknown to the rangers, one had a secret passenger on board. Bison conceal their pregnancies to prevent predators targeting pregnant animals or their offspring.

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The project site is licensed for up to 10 bison and in future, it hopes to provide bison to found other sites in the UK, as well as exchanging animals across Europe. All 9,000 bison now living in Europe are descended from just 12 zoo animals, which saved the species from extinction in the early 20th century, so maximising genetic diversity is important.

Bison’s taste for bark kills some trees and their bulk opens up trails, letting light spill on to the forest floor, while their love of rolling around in dust baths creates more open ground for new plants, invertebrates and birds. The Wilder Blean project aims to naturally regenerate a former pine wood plantation.

#awwwww #environmental news

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somebogwitch · 8 months

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From the Roots – behind Irish environmental news stories

The goal of From the Roots as a podcast is to demystify the science and figures in Irish environmental news stories and to give the necessary background for you to understand them… in fifteen minutes or less, or your money back.

There are so many breaking environmental news stories every day and limited space, even for journalists who are interesting in factual reporting, to give people the background. A lot of conversations by activists can turn into jargon, inaccessible for newcomers, quite quickly.

#podcast #podcasts #environmental news #ireland #irish news

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pepsijoboffers45 · 2 days

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Looking for flexible work opportunities that allow you to balance your career with your lifestyle? Look no further! Pepsi is offering exciting work-from-home positions, both part-time and full-time, enabling you to join their dynamic team from the comfort of your own home. With competitive compensation packages, extensive training, and support resources, Pepsi's remote jobs provide the autonomy and flexibility you need to thrive professionally while enjoying the convenience of eliminating commute time and expenses. Join a global brand known for its innovation and excellence, and embark on a rewarding career journey with Pepsi from anywhere in the world. Don't miss out on this chance to achieve work-life balance and make a meaningful impact – apply for Pepsi's work-from-home positions today!✅ Here are all the details.

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