As climate change threatens Australian trees, it’s important to identify which are at risk.
Climate extremes are killing Australian trees, but we don't know where they're dying. Scientists are asking the public to use their phones to help.
Walking towards this tree, which grows only on a select few mist-shrouded mountainsides in Queensland, can feel like stepping into a prehistoric dinosaur-filled fantasy.
In 1919, 1,376 new Norway Maples were planted along streets in Brooklyn.
Department of Parks of the Borough of Brooklyn, City of New York
In 1910, along one 45-block stretch of New York City's Fifth Avenue, there were only 13 trees.
Nowhere for wildlife to Hyde.
I Wei Huang/Shutterstock
Keeping urban habitats such as parks neat and tidy by removing dead wood and leaves is driving the species which live there to extinction.
Christmas shouldn’t be the only time of the year to have greenery in the household.
Studies show the presence of natural living things in homes improve wellbeing. So why not have your own version of a Christmas tree all year round?
Whether plastic or natural, Christmas trees are generally bad for the environment. However, a new chemical process could recycle dead trees into all kinds of useful products.
Scotch pines on a Christmas tree farm in northern Michigan.
Both natural and artificial Christmas trees have environmental impacts, but they're not major. What matters most is what happens to the trees after the holidays.
Wes Mountain/The Conversation
It takes a eucalyptus tree more than a hundred years to develop hollows suitable to shelter Aussie animals, and just moments to cut it down.
Valuing nature is hardly natural.
Snowpack protects tree roots and soil from harmful freeze/thaw cycles.
Climate change is shrinking winter snow cover in Northeast forests, which protects tree roots and soil from repeated freezing and thawing. This could stunt tree growth and forest carbon storage.
India has developed a pioneering national agroforestry policy.
If we need more trees, many will have to be introduced into managed agricultural mosaic landscapes.
The 1967 Forestry Act is a barrier to integrated forest management in England & Wales.
The Eucalyptus obliqua as seen in Merthyr Park, Tasmania.
Cowirrie/Flickr, CC BY-SA
One of the great Australian trees – messmate stringybark, Eucalyptus obliqua.
Dropping leaves might seem like a waste, but plants are actually saving nutrients.
Even the slightest touch of a D. moroides leaf can cause excruciating pain. An intense stinging, burning pain is felt immediately, then intensifies, reaching a peak after 20 – 30 minutes.
Marina Hurley, Author provided
Depending on the species, touching a stinging tree can be like 30 wasp stings at once or being burnt with hot acid and electrocuted at the same time.
Xanthorrhoea have no real trunk – just tightly packed leaves.
Grass trees are wonderfully odd. They fit no neat definition, and can live up to 600 years.
To grow tall enough to reach the canopy, a species of screw pine unique to Lord Howe Island has evolved its own rainwater harvesting system.
Matthew Biddick, CC BY-SA
How a species of screw pine unique to Lord Howe Island has evolved its own rainwater harvesting system that allows it to grow tall.
Felicity Burke/The Conversation
Urban trees are literally made with the help of human breath – they turn the carbon dioxide we breathe out into the building blocks of plant growth. So your local trees have a piece of you inside them.
The sun sets behind the Statue of Liberty, July 1, 2018.
AP Photo/Andres Kudacki, File
July is the hottest month in much of North America. Experts explain who is most affected by heat waves and ways to cope with them.
Mature trees have horizontal branches that are attractive to wildlife and birds.
The ecological value of old trees is irreplaceable for native Australian fauna. Identifying and preserving these trees in cities through smarter planning strategies is important for local wildlife.