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Findings on decline of species such as Arctic tern and turtle dove published alongside flyways pledge at Kenya summit
One in nine migratory birds are threatened with extinction and 45% of migratory species such as cuckoos, turtle doves and Arctic terns are in decline, according to a global report.
The migratory slender-billed curlew was officially declared extinct last year, the first global bird extinction in mainland Eurasia and Africa in recent centuries. Worldwide, seven migratory bird species have been confirmed or are suspected to have become extinct over the last 150 years.
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This week’s best wildlife photographs from around the world
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Customers seeking greens at one Berlin outlet are dealing with some very local supply chains indeed
Walking into the Felix Thomas REWE supermarket in Lankwitz, Berlin, customers are immediately presented with a choice of greens: romaine, rocket, iceberg. But last month, a new option joined the selection: Lankwitz loose-leaf lettuce. A combination of head lettuce, romaine lettuce, Lollo Rosso, and dark green easy leaf lettuce, its yellow packaging makes it stand out in a row of green. But it’s not just the flashy packaging that makes it distinct. Unlike its neighbouring lettuces, which come from regional farms or all the way from Italy, these greens were grown just a few metres away – or rather, a few metres up. “Frisch Vom REWE Dach” or “Fresh from the REWE roof”, the bags read.
Rooftop farms are nothing new: in cities such as Paris, Hong Kong, Copenhagen and New York, similar farms supply food to adjacent food retailers or even restaurants. This model has the potential to reduce greenhouse gas emissions from transportation (and its associated costs), minimise the urban heat effect, make use of dead space and perhaps even improve the relationship between buyers and their food.
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Emissions of planet-heating methane and CO2 from natural sources are worsening the climate crisis, paper says
Rising global temperatures caused by the burning of fossil fuels are transforming the world’s forests, wetlands and tundra to the point they are releasing emissions that could further worsen global heating by as much as 30%, a new study has found.
As the world heats up, permafrost in the high latitudes is thawing, fiercer wildfires are burning in drying forests and wetlands and lakes are warming. All of these changes are themselves causing the release of planet-heating methane and carbon dioxide locked in trees and soils, therefore worsening the climate crisis, the paper states.
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Record demand for A&E units, ambulance services and NHS 111 shows extreme heat having unprecedented impact on health, experts say
The NHS came under its most intense strain ever as a result of the summer’s five heatwaves, amid warnings that extreme heat is having an unprecedented impact on human health.
A&E units, ambulance services and the NHS 111 telephone advice line all experienced record demand for their services in England in June, July and August as Britain experienced record temperatures.
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Cranbrook, Kent: We are felling a crop of willow trees that have managed to survive their nemesis – the grey squirrel – and are destined for the batter’s grip
As the thwack of leather on willow fades from village greens with the waning of the cricket season, a new sound, perhaps less evocative of the country idyll, fills our little valley. Toppled willow trees rip through the canopies of their doomed neighbours, and drop with dull thuds to the angry screams of chainsaws.
To watch any tree fall is poignant, but for someone involved in woodland management like me, it can be conflicting. These majestic willows were planted in my teenage years, they have received my care and protection, and in turn they have given me much joy, but I always knew they were a crop, not a permanent feature. So, as these old friends are felled and hauled away to become cricket bats, an acutely uncomfortable feeling rises in me, somewhere between grief and satisfaction.
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SMD is the moisture the soil must make up until it is at capacity, with very dry conditions over most of England and Wales
When the ground is thoroughly wet, after excess rainwater has run off it is said to be at field capacity. Meteorologists describe drought in terms of soil moisture deficit (SMD) from field capacity. The SMD is a measure of how thirsty the soil is, expressed as how many millimetres of rain it would take to top it up to field capacity.
In southern England, the SMD tends to hover around zero in winter when fields are wet. In summer it may be about 100mm, going up to 150mm or more in a dry year. The extreme of dryness, when soil has no water accessible to plants, is known as the permanent wilting point or PWP.
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More than 100 lenses inside Luke Jerram’s Pollenarium let visitors see the outside world as insects would
From the outside, it looks a little like something out of the Teletubbies.
In fact, the new installation by the Bristol artist Luke Jerram represents a grain of pollen, and the inside is an insect’s eye.
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Tornadoes kill hundreds each decade in the US. These researchers are investigating why some storms produce twisters – despite the fatal risks
On a narrow road in southern Iowa, my phone shrieked.
Tornadowarning. Take shelter now in a basement or an interior room on the lowest floor of a sturdy building.
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An artisanal mining boom driven by war and poverty is causing a public health emergency, as chemicals poison soil, water and society
In Abu Hamad, on the banks of the Nile, verdant orchards, gardens and fields once produced a bounty of dates, citrus fruits, winter grains and cereals for the towns and cities of eastern Sudan, including Khartoum and Port Sudan.
Today, the land looks drastically different. Trees have been cut down, agricultural areas cleared, and farms have been replaced by shops and commercial sites. Dotted around the town and its outskirts, more than 700 mounds of grey waste are poisoning the soil, water and air. The mounds are the toxic remnants of artisanal gold mining, a practice that began in about 2008 and has intensified over the past six years.
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