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Climate change – Analysis and Comment

Sydney’s farms on the urban fringe produce 10% of the city’s fresh vegetables. Alpha/Flickr

Urban sprawl is threatening Sydney’s foodbowl

Farms on Sydney’s fringes supply 20% of the city’s food. That could drop by more than half if urban sprawl isn’t kept in check.
If the U.S. moved to electric vehicles, there would be a substantial cut in air pollution – and health benefits to go with it. septim/flickr

Clean energy could save hundreds of billions in health costs every year

Global warming is often seen as a problem for future generations, but focusing on the immediate – and substantial – health benefits of clean energy can change public perception of climate change.
Will the world resort to ‘solar radiation management’ to slow the Earth’s heating? Mark Robinson/flickr

To meet the Paris climate goals, do we need to engineer the climate?

Yes, we blunt the effects of climate change by getting off fossil fuels. But countries’ most ambitious targets imply use of climate engineering schemes – and that discussion should be done in public.
Extreme weather could trigger ecosystem collapse, including mass tree deaths. Dead tree image from www.shutterstock.com

Rising extreme weather warns of ecosystem collapse: study

Extreme weather will affect people and animals, as well as whole ecosystems. Research using satellites shows that ecosystems worldwide are vulnerable to collapse.
We don’t have to know exactly how high the sea might rise to start doing something about it. Brian Yap (葉)/Flickr

CSIRO cuts: climate science really does need to shift its focus towards adaptation

Cuts to CSIRO climate jobs will see a reduction in effort on monitoring and measuring climate change, and an increase in efforts to do something about it. That’s the most politically-sensible option.
We’re talking about a lot of seeds. Great Divide Photography

Why we won’t be able to feed the world without GM

The concerns about genetically modified foods are well known. But when we look at population and climate projections, what happens if we don’t use them to increase our food supply?
Organisations like the African Union must find a way to monitor countries’ environmental commitments. Shutterstock

How Africa can up its game to meet environmental challenges

Africa has fewer resources than others when it comes to climate change adaptation. For this reason environmental agreements must be monitored by the likes of the AU.
What people are told about their local climate and what they experience may differ. Education and collaboration can remedy this disconnect. Reuters/Tiksa Negeri

How to get communities in east Africa to trust climate science

Climate scientists are finding a disconnect between communities and climate science: people simply don’t trust the information they’re receiving.
Larry Marshall is right that the question of global warming has been answered. But there are many more climate questions to answer. AAP Image/Mick Tsikas

CSIRO boss’s failed logic over climate science could waste billions in taxes

CSIRO’s climate scientists haven’t “finished” just because climate change is real. Without their expertise, we could waste billions on drought or flood planning that’s not backed by the latest science.