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Articles sur Climate change

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Climate science is right – but it isn’t winning. NASA

Is it time to take science out of the climate change debate?

Scientists tell us that the world is warming and greenhouse gas emissions are to blame. Yet climate change framed by scientists, politicians and economists as a straightforward pollution problem will neither…
El Niño means drought in Australia – and floods in America. Len Matthews

El Niño could mean 2015 is even hotter than last year’s scorcher

It’s confirmed: 2014 produced the highest global temperatures since records began in the 1880s. As if that’s not cause enough for concern, this year threatens to see the return of El Niño, which like some…
To find out if the carbon price worked, you have to look at the electricity sector. Paul Hocksenar/Flickr

FactCheck: did carbon emissions fall faster before the carbon price?

Emissions fell by six times the rate in the five years before the carbon tax than they did under the carbon tax. – Environment minister Greg Hunt, The Guardian, January 17, 2015. Australia’s total greenhouse…
Hurricane Sandy pummeled cities along the east coast in 2012, causing billions of dollars of damage. Shutterstock

The economic cost of climate change: time for new math

Climate change is as much an economic problem as an environmental one. The effects of climate change, such as damage from more severe weather or health problems from higher temperatures, will impose a…
Harvard and Rutgers scientists propose a new, potentially more accurate way, to measure the rate of sea level rise. Shutterstock

Solving the puzzle of sea-level rise by reexamining the past

When you ask yourself what the biggest unanswered scientific questions are, “how did sea levels change over the past 100 years?” is unlikely to appear at the top of your list. After all, haven’t we already…
After mass bleaching in 1998, more than half of coral reefs in the Seychelles have slowly recovered. Nick Graham

Obituaries for coral reefs may be premature, study finds

Coral reefs are the poster child for the damage people are doing to the world’s oceans. Overfishing, pollution and declining water quality have all taken their toll on reefs around the world. Perhaps the…
A depot used to store pipes for Transcanada Corp’s planned Keystone XL oil pipeline is seen in Gascoyne, North Dakota. Andrew Cullen/Reuters

How should we calculate the CO2 impact of the Keystone pipeline proposal?

Big energy infrastructure projects – power plants, coal mines, long distance transmission lines – take time, resources and, typically, some political muscle. They create highly visible if short-lived construction…
This is the area that holds strategic importance Reuters/Balazs Koranyi

As the Arctic melts, the US needs to pay attention

In a few short months the United States assumes Chair of the Arctic Council (AC). This is a two-year long opportunity to shape the future of the Arctic, an opportunity that will likely not come around…
Could climate change be making flying more unsafe? KamrenB Photography

Could climate change have played a role in the AirAsia crash?

On December 28, AirAsia flight QZ8501 crashed into the sea between Indonesia and Singapore. Shortly before the crash, the pilots requested an alteration to the flight route due to severe weather. While…
Mountain Pygmy Possum numbers are declining due to environmental changes, including earlier snow melt. AAP/Tim Arch/DSE

Early birds: how climate change is shifting time for animals and plants

Every Spring, the blanket of Australian alpine snow starts to melt, and the Mountain Pygmy Possum wakes up from its seven-month-long hibernation. Naturally after so long under the snow, its first thought…
Horses cool off during an Adelaide heatwave in January 2014. AAP Image/David Mariuz

2014 was Australia’s third-hottest year on record, says Bureau of Meteorology

2014 has been confirmed as Australia’s third-hottest year, capping off a record-breaking decade, according to the Bureau of Meteorology’s annual climate statement, released today. Seven of Australia’s…
‘Plates of the Outback’ - A supercell thunderstorm near Urana, NSW drifts over the landscape. John Allen

Australia faces a stormier future thanks to climate change

The supercell that hit Brisbane on November 27 this year caused more than A$500 million worth of damage, produced hail up to 7.5 cm in diameter, and lashed the city with winds of more than 140 km an hour…
This lot survived rapid global warming – so why can’t we? Jay Matternes / Smithsonian Museum

Sudden global warming 55m years ago was much like today

It is often said that humans have caused the Earth to warm at an unprecedented rate. However researchers have discovered another period, some 55m years ago, when massive volcanic eruptions pumped so much…
Energy supply including nuclear is the best way to fight climate change and conserve wildlife and ecosystems. James Marvin Phelps/Flickr

It’s time for environmentalists to give nuclear a fair go

Should nuclear energy be part of Australia’s (and many other countries’) future energy mix? We think so, particularly as part of a solution to reduce greenhouse gas emissions and prevent dangerous climate…
The Gold Coast is one of Australia’s climate “hot spots” — vulnerable to rising seas, storms and erosion. Phalinn Ooi/Flickr

Cities could be the secret to fighting climate change

The world’s population could reach almost 10 billion by 2050. Most people will live in cities. To accommodate an additional 3 billion people, we’ll need to build the equivalent of one new city, that can…

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