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“Mini-IPCC” report focuses on North America

US Climate Change Science Program releases report on abrupt climate change.

Sour future for the oceans?

Call for carbon-dioxide levels to be brought down to 350 ppm to prevent ocean acidification and huge economic losses.

Predicting the climate future

Forum for the Future suggests five likely scenarios for the world in 2050.

Moving times for wildlife

Climate change is already causing disruptions in species ranges but tropical species have fewer options than those at mid-latitudes.

Climate adaptation takes the stage

Physical and social scientists must work together to make and employ the predictions needed to inform policymaking for climate adaptation and mitigation.

Monitoring the melting of the Arctic

Liz Kalaugher joins a research ship in the Canadian Arctic to find out how microwave imaging can reveal where and how fast the ice is melting.

Climate talks continue in Ghana

Deforestation and sectoral approach prove key areas for discussion.

Renewable energy: price and policy are key

Sustainable energy resources are plentiful but exploiting them at large scales is more of a challenge, heard delegates at the WREN conference.

Going sour: protecting the oceans

Including ocean acidification worries in carbon regulation would probably lower emissions targets, say researchers.

Renewable energy investment takes off

In 2007 $148 bn was invested in clean energy and energy efficiency, says the latest report for the UN Environment Programme.

Latest Talking Point articles

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Expert elicitation methods for studying technological change under uncertainty

How will public research spending affect the future costs of nuclear power? Varun Rai examines a study that asked the experts.

Biochar: a burning need for research?

Saran Sohi of the UK Biochar Research Centre explains what we need to learn before large-scale commercialization of biochar to store carbon and boost crop yields

The (elephant) seal of quality data

Over the last 10 years, tags attached to elephant seals in Antarctica have beamed back information on the state of the oceans. Kate Ravilious casts an eye over what we’ve learned as a result.

Why is evaporation drying up?

Although you might assume that evaporation will increase as temperatures rise, in reality measurements reveal that evaporation has been dropping off worldwide since the 1950s. So what exactly is going on?

The where and when of wetter and drier: disappearing Arctic sea ice plays a role

James Screen's paper in ERL contributes additional evidence that Arctic sea-ice loss is partly responsible for shifting weather patterns, says Jennifer Francis

Debate heating up over changes in climate variability

There are two camps of thought on whether temperature variability is increasing, say Lisa Alexander and Sarah Perkins, but the impact from increases in heatwaves will be a major problem.

Atmospheric rivers in changing climate

Beate Liepert examines progress in our understanding of atmospheric rivers

Bioenergy: how much can we expect for 2050?

Helmut Haberl and co-authors narrow down bioenergy estimates by looking at how much plant growth the Earth can support

History and future of the scientific consensus on anthropogenic global warming

Fritz Reusswig reckons that once the issue of climate change attribution can be regarded as settled, new questions and controversies arise.

Superconductivity’s current help for the environment

Superconductors could cut carbon emissions by boosting power transmission, transforming wind energy, creating more efficient supercomputers for climate models, enabling renewable energy storage, aiding train travel, and more, says a review in Superconductor Science and Technology.