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The promise of blockchain has been to cut out the bloated and inefficient middleman, so it is natural that platforms would emerge targeting the retail value stream.

A new Melbourne hotel will set new design standards in energy efficiency to help cut as much as 25 per cent of its energy consumption, drawing on a $39 million investment commitment from the Clean Energy Finance Corporation.

Western Sydney University is sending its Solar Car Team to the other side of the globe – as the first Australian team to ever compete in the American Solar Challenge (ASC).

Sapphire wind farms turns on 100MW of capacity to help meet ACT 100% renewables target, with more wind and solar to come.

Northumbrian Water signs deal with LightsourceBP to build 10 solar farms and help achieve its goal of being carbon neutral.

A new initiative that allows both renters and landlords to cash in on the benefits of rooftop solar energy has been unveiled for Victoria.

Bango Wind Farm Pty Ltd had originally sought permission from the NSW Department of Planning and Environment to establish up to 122 wind turbines in three clusters between Boorowa and Yass.

Trade volumes remain subdued, while a range of new financial instruments have emerged to assist the rise of renewable energy projects. The STC market enjoyed solid pricing across April.

Sanjeev Gupta signs contract with Neoen to use new solar farm to power Laverton steel mill in Victoria and slash costs. Turnbull and Macron were on hand to witness signing, and the promise of a cheaper energy future via renewables.

Scientists and public health experts say Trump administration’s bid to undo pollution rules are ‘extremely counterintuitive and worrying’

America’s leading cities have some of the cleanest urban air in the world but huge advances made in reducing smog are in danger of falling backwards, experts are warning.

New Yorkers breathe air that is 800 times less polluted than Delhi’s and twice as clean as in London and Berlin, the World Health Organization reported.

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London scientist Tom Pike is looking forward to InSight, Nasa's new mission to the Red Planet.

Charlie Veron's team have compiled a major information base called 'Corals of the World', which is used by more than 20,000 researchers and scientists across the world.

Officials say frogs caught at city’s Audubon zoo could soon pose a threat to native frogs across the Mississippi river

Invasive, noxious Cuban treefrogs that eat smaller frogs and grow as big as a human fist have established a population in New Orleans, and officials say they could soon pose a threat to native frogs across the Mississippi river.

The US Geological Survey says frogs caught at the Audubon zoo in the city and at a nearby riverfront park are the first established population of Cuban treefrogs on the US mainland outside Florida, where they’ve been multiplying at least since the 1950s.

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Rich cities have improved, but pollution in poorer countries is still rising and kills 7 million people a year globally, WHO data reveals

Pollution inequality between the world’s rich and poor is widening, according to the latest global data from the World Health Organisation (WHO) which shows that 7 million people – mostly in developing nations – die every year from airborne contaminants.

Overall, nine in 10 people on the planet live with poor, even dangerous, air, says the WHO report, which is considered the most comprehensive collection of global air quality data. But levels of contamination vary widely depending on government actions and financial resources.

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A daily summary of our news plus bite-sized updates from around the world.

Australia has always suffered heat and flood, but a detailed seasonal rainfall reconstruction of the last 800 years shows the extremes are intensifying. Mandy Freund, PhD student, University of Melbourne Ben Henley, Research Fellow in Climate and Water Resources, University of Melbourne Kathryn Allen, Academic, Ecosystem and Forest Sciences, University of Melbourne Patrick Baker, ARC Future Fellow and Professor of Silviculture and Forest Ecology, University of Melbourne Licensed as Creative Commons – attribution, no derivatives.

New York's Integrating Public Policy Task Force (IPPTF) on Monday published its latest report on how the state could impose a carbon price within its wholesale electricity markets, detailing measures to address possible emissions leakage and ratepayer burdens.

Having conceded defeat in passing a cap-and-trade bill in Oregon this year, one of the state's highest profile carbon pricing proponents is working with lawmakers through the rest of 2018 to again prepare for a renewed legislative push next year.

• Pruitt announces departures of Nino Perrotta and Albert Kelly
• ‘If I were the president, I’d get rid of you’: Pruitt lacerated at hearing

Two top aides have resigned from the Environmental Protection Agency (EPA) amid a growing series of federal ethics investigations, Scott Pruitt, the agency chief, announced on Tuesday.

Related: Trump tells EPA chief Pruitt 'we've got your back' despite ethics controversy

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