Climate change is affecting crop yields and reducing global food supplies

Deepak Ray, University of Minnesota Farmers are used to dealing with weather, but climate change is making it harder by altering temperature and rainfall patterns, as in this year’s unusually cool and wet spring in the central U.S. In a recently published study, I worked with other scientists to see whether climate change was measurably…

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Sydney declares a climate emergency – what does that mean in practice?

Chris Turney, UNSW Late on Monday night, the City of Sydney became the second state capital in Australia (after Hobart a week earlier) to officially declare a climate emergency. With climate change considered a threat to human life, Sydney councillors unanimously supported a motion put forward by Lord Mayor Clover Moore to mobilise city resources…

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Why old-school climate denial has had its day

New South Wales, which was 100% drought-declared in August 2018, is already suffering climate impacts. Michael J. I. Brown, Monash University The Coalition has been re-elected to government, and after six years in office it has not created any effective policies for reducing greenhouse emissions. Does that mean the Australian climate change debate is stuck…

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Wind and solar cut rather than boost Australia’s wholesale electricity prices

Zsuzsanna Csereklyei, RMIT University The 2019 Australian Conference of Economists is taking place in Melbourne from July 14 to 16. During the conference The Conversation is publishing a selection of articles by the authors of papers being delivered at the conference. Others are here. Wholesale prices in the National Electricity Market have climbed significantly in…

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The Industrial Revolution kick-started global warming much earlier than we realised

Helen McGregor, University of Wollongong; Joelle Gergis, University of Melbourne; Nerilie Abram, Australian National University, and Steven Phipps, University of Tasmania. Originally published at The Conversatio in 2016. In the early days of the Industrial Revolution, no one would have thought that their burning of fossil fuels would have an almost immediate effect on the…

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Greenland ice sheet melt accelerating?

Melting on top of sea ice off northwestern Greenland (June 2019) Steffen M. Olsen/Twitter Nerilie Abram, Australian National University Time will tell if this is a record summer for Greenland ice melt, but the pattern over the past 20 years is clear Greenland has been in the news a bit lately. From Huskies seemingly walking…

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