As first glance, asking whether global warming results in more snow may seem like a silly question because obviously, if it gets warm enough, there is no snow. Consequently, deniers of climate change have…
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Articles on Climate change
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Arctic sea ice melts each summer, reaching its minimum extent sometime in September, before refreezing through the winter. Over the past 35 years, the September sea ice extent has reduced by about 35…
In the early morning hours of Sunday, December 14th last year, climate negotiators in Lima, Peru concluded the COP-20 talks with an agreement among 195 countries. The Lima Call for Climate Action, or Lima…
An article in The Australian today has once again raised the question of why scientists, in trying to estimate how the global and regional surface temperatures of Earth may have changed over the past century…
Western liberal democracies believe that in difficult political decisions science serves as a referee and arbiter of truth. Scientific knowledge can indeed inform and narrow the scope of policy choices…
Australia is on track for up to 1.7C of warming this century if the world curbs its greenhouse emissions, but under a worst-case scenario could see anything from 2.8C to 5.1C of warming by 2090, according…
Carbon dioxide is the “face” of the greenhouse gases, but nitrous oxide (N2O) merits its own spotlight. The same “laughing gas” once used by dentists as an anaesthetic and used today by people looking…
The second hand of the Doomsday Clock is now only three minutes to midnight. This is the closest to apocalypse we have come since 1984 – the coldest of Cold War years, just a year after Able Archer, the…
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…
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…
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…
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…
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…
David Cameron’s decision to champion the Green Party’s inclusion in the general election debates has, regardless of his motives, considerably raised the stakes. It has also opened up broader questions…
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…
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…
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…
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…
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…
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…
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Chief Investigator on the ARC Centre of Excellence for Climate Extremes; ARC Future Fellow, UNSW Sydney
