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Climate
Sunrise in Brabec, Czech Republic. Luna y Valencia / Flickr

New Study ‘Reduces Uncertainty’ for Climate Sensitivity

By Daisy Dunne

The latest assessment report from the Intergovernmental Panel on Climate Change (IPCC) estimates that climate sensitivity has a "likely" range of 1.5 to 4.5°C.

The new study, published in Nature, refines this estimate to 2.8°C, with a corresponding range of 2.2 to 3.4°C. If correct, the new estimates could reduce the uncertainty surrounding climate sensitivity by 60 percent.

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Renewable Energy
China's State Power Investment Corp operates the São Simão dam in Brazil. NASA / ISS

China Leading on World’s Clean Energy Investment, Says Report

By Jocelyn Timperley

China is by far the largest force in global clean energy development and its firms are increasingly looking abroad for opportunities, a new report says.

The report, released Tuesday by the U.S.-based Institute for Energy Economics and Financial Analysis (IEEFA), details the rising importance of China's firms and investors for low-carbon projects outside the country.

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Animals
Coral bleaching survey, Orpheus Island 2017. Greg Torda / ARC Centre of Excellence for Coral Reef Studies

Severe Coral Reef Bleaching Now ‘Five Times More Frequent’ Than 40 Years Ago

By Daisy Dunne

The scale of bleaching has been rising steadily in the last four decades, a study author told Carbon Brief, with the global proportion of coral being hit by bleaching per year rising from 8 percent in the 1980s to 31 percent in 2016.

The findings indicate that "coral reefs as we know them may well vanish in the lifetime of the youngest of us" if no efforts are made to rapidly curb climate change, another scientist told Carbon Brief.

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Energy
iStock

IEA Says World Coal Demand Will Rise, Despite Slashing Forecast Growth in India

By Simon Evans

The International Energy Agency (IEA) has once again forecast that world coal demand will rise, despite halving its outlook for growth in India.

The IEA's Coal 2017 report, published Monday, sees a small increase in global coal demand from 2016 to 2022, with growth in India and southeast Asian countries outweighing declines in rich nations and China.

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Climate
Hurricane Harvey, seen from the International Space Station. Elements of this image are furnished by NASA. Irina Dmitrienko / Alamy

Climate Change ‘Tripled Chances’ of Hurricane Harvey’s Record Rain

By Daisy Dunne

When Hurricane Harvey struck Texas on Aug. 25, the state was hit by catastrophic flooding caused by record rainfall. In just three days, up to 40 inches (100 cm) of rain fell on Houston and its surrounding towns, leaving 80 dead and more than 100,000 homeless.

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Climate

Analysis: Global CO2 Emissions Set to Rise 2% in 2017 After Three-Year ‘Plateau’

By Zeke Hausfather

Over the past three years, global CO2 emissions from fossil fuels have remained relatively flat. However, early estimates from the Global Carbon Project (GCP) using preliminary data suggest that this is likely to change in 2017 with global emissions set to grow by around two percent, albeit with some uncertainties.

Hopes that global emissions had peaked during the past three years were likely premature. However, GCP researchers say that global emissions are unlikely to return to the high growth rates seen during the 2000s. They argue that it is more likely that emissions over the next few years will plateau or only grow slightly, as countries implement their commitments under the Paris agreement.

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Climate
UNFCCC / Facebook

Analysis: Which Countries Have Sent the Most Delegates to COP23?

By Robert McSweeney and Rosamund Pearce

For the next two weeks, thousands of negotiators, policymakers, researchers, journalists and campaigners are gathering in Bonn for the 23rd Conference of the Parties (COP23).

The talks—hosted by Fiji, but held in Germany—are the next installment of UNFCCC international climate negotiations, following on from the landmark Paris agreement at COP21 in 2015 and the steps taken towards implementation at COP22 in Marrakech last year.

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Climate
View from the Empire State Building as rain clouds form over New York City. Wordpress / tevypilc

New York City Could Face Damaging Floods ‘Every Five Years’ in a Warmer Climate

By Daisy Dunne

New York City could be struck by severe flooding up to every five years by 2030 to 2045 if no efforts are made to curb human-driven climate change, new research finds.

Floods that reach more than 2.25 meters (approximately 7.4 feet) in height—enough to inundate the first story of a building—could dramatically increase in frequency as a result of future sea level rise and bigger storm surges, the study suggests. Such severe floods would be expected only around once in every 25 years from 1970 to 2005.

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Popular
Kyle Spradley / MU College of Agriculture, Food & Natural Resources / Flickr

Grass-Fed Beef Will Not Help Tackle Climate Change, Report Finds

By Daisy Dunne

Billed as a more environmentally friendly way to rear cattle, grass-fed beef has been the red meat of choice for many a climate-conscious carnivore.

Indeed, research has suggested that grazing cattle can help offset global warming by stimulating soil to take up more carbon from the atmosphere. This process, known as soil carbon sequestration, is one way of reducing the amount of human-induced greenhouse gases in the atmosphere.

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