Eucalyptus trees in plantations are particularly vulnerable to pests.
Invasive pests threaten the world's much-needed planted forests, as trees are declining.
Forests are vital to life on earth.
Forest image from www.shutterstock.com
Forest loss has halved over the past 30 years according to the 2015 Global Forest Resources Assessment, released yesterday.
Satellites weren’t enough to get a global number.
Sophisticated models and supercomputers allow researchers to create a high-fidelity map of the Earth's trees – and show that we’re losing billions of trees a year.
There are a lot of trees on Earth. But there used to be many, many more.
There are more than three trillion trees worldwide, but that's only half as many were around at the start of human civilisation according to new research.
Each year more than 15 billion trees are lost worldwide, according to a major new study.
One more California wildfire from last year: getting more dangerous and more expensive.
The US West – suffering one of the most damaging wildfire seasons this decade – needs to break with current practices to avert more costly and dangerous wildfires in the future.
Trees remove carbon dioxide naturally: can we do better?
Coconino National Forest
Like it or not we are going to have to figure out how to suck lots of carbon out of the atmosphere.
High and dry: a water-stressed forest in the US Southwest.
Forests take longer than expected to rebound from droughts, diminishing their role as global carbon sinks.
Melburnians love their trees, and for good reason.
The fact that we have embraced the notion of emailing a tree is no surprise. We have been passionate about trees in cities for a long time.
The Separation Tree in the Royal Botanic Gardens, Melbourne, marking where Victoria’s separation from New South Wales was celebrated in 1850, is dead after two attacks by vandals.
Tree vandals after better sea views or with political goals deprive everyone of the benefits trees provide. Despite costing local councils thousands in replacement trees, they are rarely caught.
The last tree standing.
These relics of Britain's ancient woodland are still going strong.
Legend tells that huge hollow boabs were used as prisons in north west Australia.
Genetics and linguistics show Aboriginal people spread iconic boab trees around north west Australia.
They might look static, but trees are dynamic living things - just on a different time scale to us.
Michael MK Khor/Flickr
Trees are more like us than you might think. They even have a pulse. They just operate over much slower timescales.
In the 1920s and 1930s crews surveyed much of California, collecting information about vegetation. This photo was taken in 1936 by Albert Wieslander.
Marian Koshland Biosciences Library
Scientists in my native state of California were handed a gift: a trove of detailed information about the state’s forests taken during the 1920s and 1930s and digitized over the past 15 years. When we…
The inner suburbs of Melbourne are surprisingly more leafy than the outer suburbs.
When you look out of your window in the morning, how many trees do you see? Your answer might depend on what suburb you live in. As you go further from the city centre, the amount of tree cover in a suburb…
Enjoy the color while you can before climate change makes a mess of this too.
One of nature’s most spectacular events occurs every autumn, when the leaves of hardwood trees burst into brilliant color before falling to the ground. These autumnal displays in the eastern United States…
Research shows exposure to nature can relieve symptoms of ADHD in children.
We know that trees have many benefits. In forests they provide habitat, wood, biodiversity and ecosystem services. In cities, they can mitigate the urban heat island effect by cooling the air and reducing…
Woods today, firewood tomorrow?
The threat to Britain’s ancient woodland has been much discussed recently, the suggestion being that where they are lost to housing development they might be replaced with new woods through biodiversity…
Using tree measurements by Papua New Guinean villagers such as Daniel and Jackson, scientists can estimate that this tree stores about one tonne of carbon in its trunk and branches.
While hugging a tree sounds relaxing, it’s harder than you might think - especially when the tree is 20 storeys high and 3 metres wide, it’s hot as hell, and you’re swatting away swarms of sweat bugs…
Mount Kinabalu, Borneo, is home to trees that contain some of the world’s highest concentrations of nickel. Antony van der…