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Climate models show Sydney could get drier or wetter. Which scenario do we choose when making decisions? Joel Carrett/AAP

Warmer, wetter, hotter, drier? How to choose between climate futures

Depending on what model you use, climate change could make Sydney a little bit warmer, much hotter, wetter, or drier. Which one should we use? When it comes to planning for climate change, it's important to look at all the possible futures.
The US proposes to meet its climate targets through regulation, including reducing carbon emissions from coal power plants by a third below 2005 levels. Cathy/Flickr

How the US’s post-2020 climate target could fit into a global deal

The United States' post-2020 climate target raises many questions for this year's global climate talks, and puts pressure on Australia to raise the stakes.
BP’s energy outlook would make it difficult to keep warming below 2C. EPA/BERND THISSEN

BP’s extreme climate forecast puts energy giant in a bind

BP's Energy Outlook report forecast an increase in fossil fuel use by a third. That would make it difficult to keep warming below 2C.
In the Anthropocene, human-driven forces are shaping the planet in ways that may risk the collapse of human civilisation. Damián Bakarcic/flickr

Anthropocene raises risks of Earth without democracy and without us

The Anthropocene, as an epoch of human-driven planetary change, poses huge environmental and political problems. But it could also force us to develop proper ecological and democratic accountability.
Antarctica’s Brunt Ice Shelf photographed in October 2011 from NASA’s DC-8 research aircraft during an Operation IceBridge flight. Michael Studinger/NASA

Shrinking of Antarctic ice shelves is accelerating

Researchers find that ice around Antarctica shrank quickly last decade, raising concerns over this buttress against melting land-based ice and future sea-level rise.
Clumps of thunderstorms are driving increases in rain over tropical oceans. Image courtesy of the Earth Science and Remote Sensing Unit, NASA Johnson Space Center

The tropics are getting wetter: the reason could be clumpy storms

For a long time climate models have forecast increasing rainfall in tropics. Now we know part of the reason: clumpy thunderstorms.
It’s hard to know for sure what role climate change played in the intensity of Cyclone Pam. AAP Image/Dave Hunt

FactCheck: is global warming intensifying cyclones in the Pacific?

A causal relationship between cyclone behaviour and anthropogenic global warming is a very real possibility. But most climate scientists hesitate to attribute any single event to global warming.
Australian has moved swiftly to fly relief aid and personnel to Vanuatu but has been less responsive to Pacific Islanders' pleas to act on climate change. AAP/Dave Hunt

Vanuatu disaster exposes limits of Australian internationalism

While Australia’s leaders express concern for the people of Vanuatu, the welfare of poor states is a commitment from which Australia is walking away.

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