Browsed by
Category: Ecology

Those financing climate disaster need to learn from indigenous wisdom

Those financing climate disaster need to learn from indigenous wisdom

Tara Houska writes: “This way of life is not primitive, it is not uncivilised,” I gestured to the image on the screen just above my head. It showed my longtime teacher, Dennis Jones, knocking manoomin (wild rice), the grain sacred to Anishinaabe people, into a canoe. I snapped that photo of us harvesting wild rice years back, before a new pipeline called Line 3 threatened to carry a million barrels of tar sands per day from Alberta through some of…

Read More Read More

Our oceans brim with climate solutions. We need a Blue New Deal

Our oceans brim with climate solutions. We need a Blue New Deal

Ayana Elizabeth Johnson writes: Our nation has more than 95,000 miles of shoreline, home to 40 percent of Americans who live in coastal counties. Our blue economy, including fishing, ocean farming, shipping, tourism and recreation, supports more than 3.25 million American jobs and a $300-billion annual contribution to our gross domestic product. And, for many, our cultural heritage is tied to the sea. These communities are threatened by rising sea levels, eroding coasts and climate change-fueled storms. Yet the Green…

Read More Read More

Bushfires in Australia’s Gondwana rainforests destroy areas that have historically been too wet to burn

Bushfires in Australia’s Gondwana rainforests destroy areas that have historically been too wet to burn

The Guardian reports: The Unesco world heritage centre has expressed concern about bushfire damage to the Gondwana rainforests of northern New South Wales and southern Queensland, and asked the Australian government whether it is affecting their world heritage values. In a statement on its website, the centre said members of the media and civil society had asked about the bushfires affecting the areas inscribed on the world heritage list as the “Gondwana rainforests of Australia”. The forests are considered a…

Read More Read More

Indigenous knowledge can help solve the biodiversity crisis

Indigenous knowledge can help solve the biodiversity crisis

Hannah Rundle writes: The United Nations recently released a preliminary report warning that global biodiversity is declining at an unprecedented rate, with approximately one million species currently at risk of extinction. However, the report noted biodiversity is declining at a significantly slower rate on lands governed by indigenous peoples, demonstrating their success as stewards of their natural environment. Biodiversity describes genetic diversity within and between species and is integral to the health and resiliency of ecosystems. A decline in biodiversity…

Read More Read More

Light pollution is key ‘bringer of insect apocalypse’

Light pollution is key ‘bringer of insect apocalypse’

The Guardian reports: Light pollution is a significant but overlooked driver of the rapid decline of insect populations, according to the most comprehensive review of the scientific evidence to date. Artificial light at night can affect every aspect of insects’ lives, the researchers said, from luring moths to their deaths around bulbs, to spotlighting insect prey for rats and toads, to obscuring the mating signals of fireflies. “We strongly believe artificial light at night – in combination with habitat loss,…

Read More Read More

Thoreau, the scientist

Thoreau, the scientist

Curt Stager writes: Much more has been said and written about Thoreau’s philosopher-poet side than his naturalist side, but as a scientist I am more interested in the latter. The journals that he kept from 1837 to 1861 were so full of natural history observations that they might have become a major scientific work if he had not died of a lung ailment at age 44. He probably thought so, too. Two months before his death in 1862 he wrote…

Read More Read More

Koalas ‘functionally extinct’ after Australia bushfires destroy 80% of their habitat

Koalas ‘functionally extinct’ after Australia bushfires destroy 80% of their habitat

Trevor Nace reports: As Australia experiences record-breaking drought and bushfires, koala populations have dwindled along with their habitat, leaving them “functionally extinct.” The chairman of the Australian Koala Foundation, Deborah Tabart, estimates that over 1,000 koalas have been killed from the fires and that 80 percent of their habitat has been destroyed. Recent bushfires, along with prolonged drought and deforestation has led to koalas becoming “functionally extinct” according to experts. Functional extinction is when a population becomes so limited that…

Read More Read More

Pope Francis: Catechism will be updated to define ecological sins

Pope Francis: Catechism will be updated to define ecological sins

America magazine reports: Following through on a proposal made at the Synod of Bishops for the Amazon, Pope Francis said there are plans to include a definition of ecological sins in the church’s official teaching. “We should be introducing — we were thinking — in the Catechism of the Catholic Church the sin against ecology, ecological sin against the common home,” he told participants at a conference on criminal justice Nov. 15. Members of the International Association of Penal Law…

Read More Read More

The elephant-human relationship dates back into prehistory

The elephant-human relationship dates back into prehistory

Tim Flannery writes: In January 1962, on my sixth birthday, I was taken to Melbourne Zoo, where I rode an elephant. We children climbed a scaffold and perched on rough wooden benches atop the elephant’s back, where my fingers furtively reached for a feel of its wrinkled skin. A few months later, elephant rides were discontinued, for safety reasons, at most zoos in Australia, Europe, and the US. I was dimly aware of the danger involved in mounting such an…

Read More Read More

Buddhism and ecology shed light on the nature of reality and the reality of nature

Buddhism and ecology shed light on the nature of reality and the reality of nature

David P Barash writes: Once, while waiting for a wilderness permit at a ranger station in North Cascades National Park, Washington state, I overheard the following message, radioed into headquarters by a backcountry ranger: ‘Dead elk in upper Agnes Creek decomposing nicely. Over.’ This ranger was not only a practical and profound ecologist, she also possessed the wisdom of a Buddhist master. The ‘over’ in her communication seemed especially apt. For Buddhists, as for ecologists, all individual lives are eventually…

Read More Read More

Mapping the human oral microbiome

Mapping the human oral microbiome

In an interview with Knowable Magazine, Floyd Dewhirst says: We don’t really know the number of bacteria in an average mouth. But there are something like 1011 [100 billion] organisms per gram of plaque — so we’re looking at a large number. What people usually talk about is how many species are in there. The Human Oral Microbiome Project identified a little over 700 different species of bacteria. (There are also fungi and viruses.) About 400 of the 700 bacterial…

Read More Read More

Ocean acidification can cause mass extinctions, fossils reveal

Ocean acidification can cause mass extinctions, fossils reveal

The Guardian reports: Ocean acidification can cause the mass extinction of marine life, fossil evidence from 66m years ago has revealed. A key impact of today’s climate crisis is that seas are again getting more acidic, as they absorb carbon emissions from the burning of coal, oil and gas. Scientists said the latest research is a warning that humanity is risking potential “ecological collapse” in the oceans, which produce half the oxygen we breathe. The researchers analysed small seashells in…

Read More Read More

How ballooning carbon emissions will impact trees

How ballooning carbon emissions will impact trees

Daniel Grossman writes: Apart from the experts, few people realize that climate change could be worse. Every year, trees, shrubs, and every other kind of plant absorb 9 billion tons of CO2—one quarter of what we let loose from our tailpipes and smokestacks—and help slow the gas’s accumulation in the atmosphere. If not for the world’s photosynthesizers, the concentration of CO2 in the air, along with Earth’s temperature, would be rising much faster than it already is. Our terrestrial plants…

Read More Read More

What an embodied history of trees can teach us about life

What an embodied history of trees can teach us about life

Dalia Nassar and Margaret M Barbour write: Place yourself on the West Coast of the South Island of New Zealand, near the Franz Josef Glacier. Officially, this forest is a temperate podocarp-hardwood rainforest, but these dry words belie the rich diversity of plant life around, encompassing every imaginable shade of green, brown and grey. They also do an injustice to the experience of standing dwarfed by the soaring trunks of the 400-year-old rimu trees draped in moss, with their beautifully…

Read More Read More

How the loss of Native American languages affects our understanding of the natural world

How the loss of Native American languages affects our understanding of the natural world

Dance is a unique way of passing on cultural stories to a younger generation. Aaron Hawkins/Flickr.com, CC BY-ND By Rosalyn R. LaPier, The University of Montana Alaska has a “linguistic emergency,” according to the Alaskan Gov. Bill Walker. A report warned earlier this year that all of the state’s 20 Native American languages might cease to exist by the end of this century, if the state did not act. American policies, particularly in the six decades between the 1870s and…

Read More Read More

For microorganisms, cooperation rather than competition, is the key to survival

For microorganisms, cooperation rather than competition, is the key to survival

The University of Copenhagen reports: New microbial research at the Department of Biology reveals that bacteria would rather unite against external threats, such as antibiotics, rather than fight against each other. The report has just been published in the scientific publication ISME Journal. For a number of years the researchers have studied how combinations of bacteria behave together when in a confined area. After investigating many thousands of combinations it has become clear that bacteria cooperate to survive and that…

Read More Read More