Different kinds of plants make different kinds of seeds. Some seeds grow into trees and other seeds grow into other kinds of plants.
Trees evolved many times around the world.
Coal seam gas extraction has increased social stress in Darling Downs.
University of Queensland
Research into Queensland's Darling Downs area has found social stress caused by housing pressure, population shifts and the 'two-speed economy' of coal seam gas.
Whoosa vicious helpful predator? You are! Yes you are!
Dingoes increase cattle yields, mountain lions reduce car crashes and vultures eat organic waste: like them or not, predators help humans.
Josh Frydenberg met with state energy ministers in Melbourne the latest round of discussions over the National Energy Guarantee.
AAP Image/Luis Ascui
The federal government is confident that states will sign up to the National Energy Guarantee, with a final decision now timetabled for August.
The greenest option might be to get a disposable bottle but never dispose of it.
We all know that tap water is better than buying bottled water, from an environmental standpoint at least. But what should you drink it out of? A single-use bottle, used multiple times, might be best.
The amount of landfill in Australia is expected to rise since China is no longer buying our recycling waste. But there are easy solutions to this big problem.
Ipswich Council has stopped recycling and it's likely that others around Australia will follow suit.
Staghorn and tabular corals suffered mass die-offs, robbing many individual reefs of their characteristic shapes.
ARC Centre of Excellence for Coral Reef Studies/ Mia Hoogenboom
The 2016 bleaching event resulted in 30% mortality on the Great Barrier Reef, with many corals dying of the heat before they bleached and the loss of branching corals creating less complex reef structure.
Australia will have to regulate its considerable shipping industry.
Until now, the international shipping industry has been excluded from the Paris Agreement and the Kyoto Protocol, despite its major contribution to global emissions.
Is the long journey towards a bipartisan emissions policy nearing its end?
State energy ministers meet this week to discuss the National Energy Guarantee. While the policy has been criticised as too modest, it would put us light years ahead of the previous climate policy paralysis.
Mai Lam/The Conversation NY-BD-CC
Sea otters can break the shell on a shellfish by hitting it against a stone resting on their belly. This can look like clapping. Some even have a favourite stone they carry around in their armpits.
Lake Tarawera, seen from its outlet, has excellent but declining water quality.
The ecological health of New Zealand's lowland rivers and lakes is in decline, but principles borrowed from drinking water safety could help reverse the degradation.
Electric cars are taking over – but they really as green as they look?
Jack Amick / flickr
Electric cars might be a quick fix to clean up transport, but the problems with cars go beyond just emissions.
New research shows that fire follows fire in the Australian Alps, and old-growth forests are less flammable.
Don’t believe the wipe hype: they can’t be flushed down toilets, not matter what the label says.
SIM Central and South East Asia Follow/Flickr
Just because something is advertised as 'flushable' doesn't mean you should put it in your toilet.
The itchiness from mosquito bites are from their spit that they leave behind in our skin.
Mai Lam/The Conversation NY-BD-CC
Those "itchy bites" are actually reactions to mozzie spit.
Tesla is installing one of the world’s largest solar arrays at its Gigafactory 1 in Nevada.
Will the renewable energy transition end up creating yet more greenhouse emissions, as we ramp up the manufacture of wind turbines and solar cells? Not if their manufacture is itself powered by renewables.
The Loy Yang station will be the site of a new hydrogen fuel project.
AAP Image/Julian Smith
AGL has announced plans to use coal to make hydrogen fuel at its Loy Yang A station in Victoria's Latrobe Valley. Wait, isn't coal made of carbon, not hydrogen? Yes, but here's how the process works.
New Zealand’s government will not grant any new permits for exploration of offshore oil and gas reserves.
New Zealand has ruled out new permits for offshore oil and gas exploration as a step towards a transition to a carbon-neutral future.
Much of Australia is set for a hot April.
Record-breaking April heat is likely to continue for at least another month.
It was a hot year for many Australians.
An annual assessment of the health of Australia's environment shows mostly stable conditions in 2017, but ecosystems on land and at sea suffered ever higher temperatures.
A sheep undergoing live export in 2017.
Footage of sheep transport conditions have shocked many, but live export has a long history in Australia.
Which council has Australia’s best-tasting water?
Every year councils around Australia compete to prove they have the best-tasting tap water in the country.
Rocks being removed to make way for farming.
Across large ares of Australia, rocky outcrops are being obliterated to open up more land for farming. But many of these "bush rocks" are refuges for fragile ecosystems.
AGL has promised to replace the power generated by Liddell with a mix of other sources.
Government pressure on AGL to keep its Liddell power plant open past 2022 ignores the sensible, cost-effective plan to replace it.
Dogs don’t follow the rules on larger animals living longer.
Cindy Zhi/The Conversation NY-BD-CC
Dogs don't follow the rules on larger animals living longer. A 70kg Great Dane is lucky to reach seven years, but a 4kg Chihuahua can live for 10 years or more.