A crack in a road near Kathmandu caused by the earthquake.
The earthquake that struck Nepal on Saturday was caused by the same forces that built the Himalayas, and science is helping predict where the next quake might strike.
The wrong track? The biggest emitters, such as power stations, were largely absent from the government’s first round of greenhouse reduction contracts.
AAP Image/Dan Peled
Federal environment minister Greg Hunt has hailed the first round of Emissions Reduction Fund auctions as a "stunning result". But extrapolating the numbers puts Australia behind on its carbon targets.
Growth industry: forestry will account for much of the carbon reductions under the first round of Emissions Reduction Fund contracts.
The first round of contracts for Australia's Emissions Reduction Fund have been awarded, at an average price of just under A$14 a tonne. How do the numbers stack up, and what projects are the big winners?
Out of sight out of mind? The vast majority of global warming is going into the ocean.
Over the past decade, warming air temperatures at Earth's surface appear to have slowed. But that ignores the vast majority of heat going steadily into the ocean. And, a new paper shows, that makes no difference to the long-term prognosis.
Leadbeater’s Possum is dependent on large, old trees that produce hollows for its survival.
The Leadbeater's has been formally listed as critically endangered. But unless clearfelling in the possums' stronghold stops, it will continue down the road of extinction.
Every tonne of coal burnt is a tonne off the carbon budget to keep warming below 2C.
If we're going to limit global warming to less than 2C, Australia will need to keep more than 90% of its coal reserves in the ground.
To save wildlife we’ll need to intensify our resource use to leave space for conservation.
With increasing human pressure on the environment, how can we save wildlife while lifting people out of poverty? A new manifesto argues for using technology to intensify energy and agriculture.
Scaling back coalmining is one way Australia could make big progress towards its emissions targets.
The Climate Change Authority has recommended Australia cut greenhouse gas emissions 30% below 2000 levels by 2025. While sensible, the government is unlikely to accept, and the target misses bigger opportunities to cut emissions.
Sand blown inland at Bondi Beach.
AAP Image/David Moir
What causes the wild weather that's hit Sydney and central New South Wales over the past 24 hours?
Good climate models can predict and help us respond to weather events.
Climate and weather models have come far in recent decades, and Australia has one of the best.
Mangroves are still be cleared for aquaculture expansion. Since 1989, 6600 hectares of Tanjung Panjang Nature Reserve’s original 13,300 ha of mangroves have been converted.
Mangroves, hectare for hectare, store more carbon than any other forests. But they are also among the most threatened. New projects in Indonesia show how mangroves might be restored.
The way forward? Light rail helps urban development far more than roads do - the challenge is how to pay for it.
AAP Image/Dave Hunt
Light rail is good for cities, but it's also expensive, which is why many Australian cities have opted for buses instead. But there is a way to get top-drawer public transport using private dollars.
Marine parks are valuable tools to help safeguard species such as seagrasses.
AAP Image/James Cook University
Australia's network of marine parks - a decade in the making and announced in 2012 - haven't been implemented yet, and the Abbott government has already placed the plans under review. Why the hurry?
Australia’s gas market is entering a time of change: increasing supply, such as coal seam gas, can provide certainty.
Australia's "looming gas shortage" - the basis for calls to deregulate coal seam gas - may not be real after all. But gas prices are still set to rise, and that's an area where coal seam gas could help.
Dr Karl shouldn’t be afraid of getting political - as long as he’s doing it for science, not politicians.
AAP Image/Mick Tsikas
Dr Karl has been criticised for fronting adverts for a government report he turned out not to agree with. But despite his lapse in judgement, he hasn't seriously breached his journalistic ethics.
Science shows alpine grazing doesn’t reduce bushfire risk and damages the environment. But the issue will no doubt continue to be debated.
AAP Image/Bob Richardson
Alpine grazing will be permanently banned from Victoria's Alpine National Park under legislation debated this week.
Friends of the Earth is among the environmental groups that have been criticised in some quarters as ‘anti-jobs’.
Friends of the Earth/AAP Image
A federal government inquiry that reportedly threatens the tax-deductibility status of dozens of environmental groups is the latest move towards quieting outspoken green groups, writes Peter Burdon.
It’s (reverse) auction time for the government’s emissions-reduction plans.
The federal government is holding the first reverse auction to award contracts for its Direct Action emissions plan. Here's how it will work.
Koalas are one of the threatened species that could benefit from carbon farming.
With bids open today for the government's Emissions Reduction Fund, experts explain how storing carbon can be a win for wildlife too.
Japan will need to try again to justify killing whales for scientific research.
AAP Image/Supplied by Sea Shepherd Australia, Tim Watters
Japan's proposed new program to kill whales for science has been rejected by an international expert panel.
Both electric cars and renewable energy stand to gain significantly from cheaper storage.
Battery prices are falling faster than anyone expected: that's good news for solar power and electric cars.
“All we want is the chance to go to a supermarket.”
Cheap "ugly food" campaigns in supermarkets have been criticised as not really helping to cut food waste. But they do, by ensuring that more of what farmers grow actually makes it into the shops.
Rangers have mostly killed young male dingoes on Fraser Island, new research shows.
The famous dingoes of Fraser Island are not threatened by the practice of culling dangerous dingoes, says new research which shows the numbers killed are too small to harm the population's sustainability.
Tunnel vision: the claim that more roads equals less congestion fails to see the wider picture.
AAP Image/Dean Lewins
A new road may provide motorists with some level of respite from congestion in the short term. But almost all of the benefit from the road will be lost in the longer term.
The long view: Australia is bidding to boost energy productivity by 40% by 2030, but other countries are already doing more.
Australia's federal government wants to boost 'energy productivity' by 40% by 2030. A good idea, but the plan needs to cut energy use, not just deliver more economic bang for the energy buck.