#biodiversity-loss

#biodiversity-loss

Between 1940 and 2020, the average body mass of birds in 10 Indigenous and local communities on three continents declined by up to 72%. For the Indigenous communities who were interviewed, birds often hold immeasurable symbolic and ceremonial significance. Thus, ritual dances, songs, and place names are at risk of being lost in the face of this loss of biodiversity.

Biodiversity loss is continuing at an unprecedented rate, with species becoming extinct at between 100 and 1,000 times the average pre-human, or 'background', rate. Human activities are the main cause. Although there are hundreds of local, regional and international initiatives to conserve and sustainably use species and ecosystems, many conservation scientists worry that measures such as interventions to conserve individual species or incentives to create protected areas are not supported by strong evidence from research.

I know it's almost impossible to turn your eyes away from the Trump show, but that's the point. His antics, ever-grosser and more preposterous, are designed to keep him in our minds, to crowd out other issues. His insatiable craving for attention is a global-threat multiplier. You can't help wondering whether there's anything he wouldn't do to dominate the headlines. But we must tear ourselves away from the spectacle, for there are other threats just as critical that also require our attention.

Harj al-Raheb, or the Monk Forest, lies on the southern edge of Ayta ash-Shaab, a Lebanese village right on the border with Israel. Its 16 hectares (40 acres) are made up of two adjoining woodland areas, known locally as the Southern and Western Hima, that once enjoyed a degree of protection for their ecological richness and cultural value. In early October 2023, these slopes were still thick with oak, carob, terebinth, and bay trees.

An economist might celebrate a nation achieving record economic growth on one day, yet overlook a coral reef lying bleached and lifeless on another. This contradiction must be challenged, writes economist Partha Dasgupta in his elegant account of why the global economic system is exploiting, rather than sustaining, life on our planet. On Natural Capital recaps the roaring economic advances of the past 75 years, including improved life expectancies and education and fewer people living in poverty.

Britain is one of the least nature connected nations in the world, according to the first ever global study of how people relate to the natural world. Britain ranks 55th out of 61 countries in the study of 57,000 people, which looks at how attitudes towards nature are shaped by social, economic, geographical and cultural factors. The most nature-connected nation is Nepal, followed by Iran, South Africa, Bangladesh and Nigeria, according to the study, which is published in the journal Ambio.

Paving over gardens with impermeable surfaces has and will continue to undermine urban resilience, says Prof Alistair Griffiths, the director of science and collections at the Royal Horticultural Society (RHS). Water can't get through concrete, asphalt and paving, which contributes to surface flooding and overwhelms the sewer system, leading to pollution runoff. Loss of vegetation also contributes to global heating. We've got these increased extremes of heat and if you lose green space, you lose that cooling effect, he adds.

Birds throughout the US have adopted a disturbing habit that could have devastating implications for human society if it continues. Researchers have found that birds are abandoning their usual migration patterns, with warmer temperatures in their winter habitats disrupting their annual flights While delaying their yearly flight south may not sound like a major problem, a visiting scientist at Cornell University, Andrew Farnsworth, warned that it could lead to many bird species dying out and drastically altering nature.

Europe is losing green space that once harboured wildlife, captured carbon and supplied food at the rate of 600 football pitches a day, an investigation by the Guardian and partners has revealed. Analysis of satellite imagery across the UK and mainland Europe over a five-year period shows the speed and scale with which green land is turning grey, consumed by tarmac for roads, bricks and mortar for luxury golf courses and housing developments.

As biodiversity loss accelerates alongside the climate crisis, businesses are increasingly recognizing their role in both causing and potentially solving this planetary emergency. The scale of the problem is stark: humans and our livestock now make up around 96% of all land-based mammal biomass, leaving just 4% for the world's remaining wild species. But progress in combating such losses remains too slow.