cross-posted from: https://lemmy.world/post/15364086

As I write this, I’m getting ready to leave for my seventh season of tree planting. I’ve had an eye on the weather all winter, watching as the snowpack levels in British Columbia reach lows not recorded since at least 1970, watching as rivers — like the confluence of the Nechako and Fraser rivers in Prince George — run dry.

According to data from Agriculture and Agri-Food Canada’s National Agroclimate Information Service, by the end of March this year 85 per cent of B.C. was considered abnormally dry or in moderate to exceptional drought. The region that I’ll be planting in, near Burns Lake, is one of the driest in the province.

Over the years I’ve had many doubts about the ecological benefits of the province’s reforestation practices.

But last season marked the first time I started to wonder if tree planting might someday become ecologically unviable in some regions of the province.

The lack of precipitation coupled with unseasonably high temperatures made the soil on some blocks so dry and compacted it was like planting into a sheet of rock. I was often struck with the sense that the earth was actively rejecting the trees I was planting. I imagined the trees I’d planted withering and dying, eventually becoming fuel for the wildfires that were then burning all around us.

Was it possible that these intensifying climatic events could render some ecosystems unable to support the growth of new trees? Was I on the frontlines of witnessing the beginning of the end of reforestation as we’ve known it for the last 50 years?

I decided to ask around. I spoke to Sally Enns, who works as a forestry manager contracted by the Cheslatta Carrier Nation and is an incoming supervisor at the reforestation company I work for; we were based out of the same bush camp for part of last season. Reflecting on the drought conditions, she articulated many of the same concerns that I’d had.

archived (Wayback Machine)

cross-posted from: https://slrpnk.net/post/20737356

A team of international researchers published a new U.N. report Wednesday that adds to the rising scientific call for transformative societal and economic changes to staunch critical environmental threats like global warming, plastic pollution and biodiversity loss.

“The science is clear on what needs to change,” said lead author Caitlyn Eberle. “Stop using fossil fuels, respect and protect nature, use resources sustainably. So if we know what we need to do to change things, why aren’t we doing it?”

The research in the report shows that many of today’s sustainability projects are superficial because they focus on small changes within the system without changing the system itself, she said. A good example is recycling, which is valuable, but doesn’t get to the core issue of why so much waste is produced in the first place, she added. “We cannot expect real change unless we examine the reasons behind our actions and question why we’re doing what we’re doing.”

The process may lead to some “uncomfortable” territory, said UNU-EHS deputy director Zita Sebesvari, another lead author of the report. Crises in Earth’s ecosystems, including the climate and human systems, require rethinking many basic assumptions and values, for example about consumption and waste. “If we bring this to our own life,” she said, “the question is, why do we think that convenience is more important than other values like nature and a pollution-free environment?”

https://archive.ph/QmXcB

Amid all the bad climate news flowing out of the Trump administration, you might have missed a quiet new consensus congealing in think tanks and big business. The targets set out by the Paris climate agreement, they argue—to limit global temperature rise to two degrees Celsius (3.6 degrees Fahrenheit)—are a lost cause. It’s time to prepare for a world warmed by at least three degrees Celsius.

Owing to “recent setbacks to global decarbonization efforts,” Morgan Stanley analysts wrote in a research report last month, they “now expect a 3°C world.” The “baseline” scenario that JP Morgan Chase uses to assess its own transition risk—essentially, the economic impact that decarbonization could have on its high-carbon investments—similarly “assumes that no additional emissions reduction policies are implemented by governments” and that the world could reach “3°C or more of warming” by 2100. The Climate Realism Initiative launched on Monday by the Council on Foreign Relations similarly presumes that the world is likely on track to warm on average by three degrees or more this century. The essay announcing the initiative calls the prospect of reaching net-zero global emissions by 2050 “utterly implausible.”

archived (Wayback Machine)

Related: Global Warming Has Accelerated: Are the United Nations and the Public Well-Informed?

(Previous climate models have underestimated the cooling effect of aerosol pollution and the climate's sensitivity to rising carbon dioxide levels.)

“The temperatures, seasons, and patterns of rainfall and drought have all shifted noticeably. In the past 10 to 20 years, we have seen prolonged droughts and intense, shorter rainfalls that are insufficient for crop yield and production.”

In response to this new situation, the Ugandan government and civil society organizations have promoted planting trees as a solution. They are encouraging people in Kasese district to plant native species, which are more resistant to pests and diseases and offer ecological and socio-economic benefits.

archived (Wayback Machine)

West Virginia regulators require methane remediation from a coal company following a blast that severely burned a woman in her home.

archived (Wayback Machine)

In the summer of 2023, a dozen people willingly walked into a steel chamber at the University of Ottawa designed to test the limits of human survival. Outfitted with heart rate monitors and temperature probes, they waited in temperatures of 42 degrees Celsius, or 107 degrees Fahrenheit, while the humidity steadily climbed, coating their bodies in sweat and condensation. After several hours, their internal body temperatures began ratcheting upward, as the heat cooked them from the outside in.

“Few people on the planet have actually experienced temperatures like this,” said Robert Meade, a postdoctoral researcher in epidemiology at the Harvard School of Public Health who led the study. “Imagine moisture condensing on the skin like a glass of water on a hot day. That’s how hot it was, compared to skin temperature.”

Their experiment tested the body’s ability to cope with extreme heat by exposing participants to temperatures at which they could no longer cool themselves. Their study confirmed that this dangerous threshold is much lower than scientists had previously thought: a so-called wet-bulb temperature, which accounts for heat and humidity, of 26 to 31 degrees C.

https://archive.ph/Lj16Y

cross-posted from: https://slrpnk.net/post/20734606

Like many African nations, Nigeria has lagged behind Global North countries in shifting away from planet-warming fossil fuels and toward renewable energy. Solar power contributes just around 3 percent of the total electricity generated in Africa — though it is the world’s sunniest continent — compared to nearly 12 percent in Germany and 6 percent in the United States.

At the same time, in many African countries, solar power now stands to offer much more than environmental benefits. About 600 million Africans lack reliable access to electricity; in Nigeria specifically, almost half of the 230 million people have no access to electricity grids. Today, solar has become cheap and versatile enough to help bring affordable, reliable power to millions — creating a win-win for lives and livelihoods as well as the climate.

That’s why Nigeria is placing its bets on solar mini-grids — small installations that produce up to 10 megawatts of electricity, enough to power over 1,700 American homes — that can be set up anywhere. Crucially, the country has pioneered mini-grid development through smart policies to attract investment, setting an example for other African nations.

Nearly 120 mini-grids are now installed, powering roughly 50,000 households and reaching about 250,000 people. “Nigeria is actually like a poster child for mini-grid development across Africa,” says energy expert Rolake Akinkugbe-Filani, managing director of EnergyInc Advisors, an energy infrastructure consulting firm.

cross-posted from: https://slrpnk.net/post/20734606

Like many African nations, Nigeria has lagged behind Global North countries in shifting away from planet-warming fossil fuels and toward renewable energy. Solar power contributes just around 3 percent of the total electricity generated in Africa — though it is the world’s sunniest continent — compared to nearly 12 percent in Germany and 6 percent in the United States.

At the same time, in many African countries, solar power now stands to offer much more than environmental benefits. About 600 million Africans lack reliable access to electricity; in Nigeria specifically, almost half of the 230 million people have no access to electricity grids. Today, solar has become cheap and versatile enough to help bring affordable, reliable power to millions — creating a win-win for lives and livelihoods as well as the climate.

That’s why Nigeria is placing its bets on solar mini-grids — small installations that produce up to 10 megawatts of electricity, enough to power over 1,700 American homes — that can be set up anywhere. Crucially, the country has pioneered mini-grid development through smart policies to attract investment, setting an example for other African nations.

Nearly 120 mini-grids are now installed, powering roughly 50,000 households and reaching about 250,000 people. “Nigeria is actually like a poster child for mini-grid development across Africa,” says energy expert Rolake Akinkugbe-Filani, managing director of EnergyInc Advisors, an energy infrastructure consulting firm.

Let's say that someone moderates several different communities for related subjects. If they make a list of these communities and their respective links and descriptions, is it possible to post that list in one place (on Lemmy or elsewhere) and then embed it in the sidebar of each community? That way any edits to the list would only have to be made in one place and not edited in each community's sidebar separately. The goal is to have the current list appear in full in the sidebar, so linking to it would not achieve this, but embedding it would.

Thanks!

cross-posted from: https://lemmy.ca/post/41960022

Plectranthus barbatus grows to its full height in 1-2 months from a cutting and the cutting itself costs around 50 Kenyan shillings ($0.37).

"The leaves are similar in size to an industrial toilet paper square, making them suitable for use in modern flush toilets or for composting in latrines," says Odhiambo.

They emit a minty, lemony fragrance. Covered in tiny hairs, the leaves have a soft texture.