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Annual carbon emissions, excluding unreliable data, higher than ever, report says

Australia’s emissions over the past year were again the highest on record when unreliable data from land use and forestry sectors are excluded, according to new data from NDEVR Environmental.

If the country’s greenhouse gas emissions continue on their current trajectory, Australia will miss its Paris target by a billion tonnes of CO2, which is equal to about two years of Australia’s entire national emissions.

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New Energy Solar to buy 46.7MW NSW solar farm, in deal that offers rare insight into economics of Australian market.

Some of the same businesses and lobby groups that supported Abbott's dumping of the carbon price and attack on the RET, flown in to make him feel good about the NEG.

25 June 1918 Without apparent effort they dash with incredible speed to one side or the other, or even backwards or forwards

Slim-bodied, brilliantly blue dragonflies dart above the waterside vegetation, then suddenly stop themselves and cling to an upright stem, wings extended wide, long legs clasping with angled “elbows.” They do not dash themselves against the plant they aim for. Poised in the air as if suspended are the buzzing hover-flies, their wings moving so rapidly that we only see a blur. Without apparent effort they dash with incredible speed to one side or the other, or even backwards or forwards; we see a line flash across our field of vision, and there the insect is, hovering again five yards away, or maybe back in the same spot from which it suddenly vanished.

Related: Photographing dragonflies is easier than you think | Mike Averill

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Stick insects may be using birds to disperse their eggs, just as plant do. James O'Hanlon, Postdoctoral research fellow, University of New England Licensed as Creative Commons – attribution, no derivatives.

Talga Resources claims breakthrough in production of conductive concrete, which could play role in wireless charging of EVs.

Wholesale electricity prices in Queensland go negative in middle of the day, underlining the case for storage as more large-scale solar projects connect to the grid, and rooftop solar continues to grow.

Victorian energy storage business that offered "the most affordable battery in Australia" – and longest warranty – has gone into liquidation.

Initiative aims to reduce dumping of ‘waste’ and sell it at prices set by buyers

In a bright, airy Toronto market, the shelves are laden with everything from organic produce to pre-made meals and pet food. What shoppers won’t find, however, is price tags. In what is believed to be a North American first, everything in this grocery store is pay-what-you-can.

The new store aims to tackle food insecurity and wastage by pitting the two issues against each other, said Jagger Gordon, the Toronto chef who launched the venture earlier this month.

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What is really happening beneath the surface of Australia’s solar industry; and what supply and demand trends can we expect to see in the next decade?

Energy bills are becoming to complex to understand, but we can learn much by analysing them closely. Here's how..

If you want to prove that an electric vehicle is fast and grunty, there’s nothing like winning an uphill road race. Against petrol cars.

Volunteers make new homes for native wildlife; turn your backyard into an urban market garden; and kick up your heels at the Kooroorinya Races jive competition.

The circus has come to Melbourne's Royal Botanic Gardens, with the Circus Oz big top now standing among the gardens' stunning trees and historic buildings.

The Royal Observatory Greenwich is to start serious study of the sky again after a break of 60 years.

With electricity bills becoming more complicated, it's increasingly difficult for customers to know if they are getting a good deal. Bruce Mountain, Director, Victoria Energy Policy Centre, Victoria University Licensed as Creative Commons – attribution, no derivatives.

Union boss and Corbyn ally urges all Labour MPs to back expansion ahead of third runway vote

Len McCluskey has written to all Labour MPs urging them to back Heathrow expansion on Monday, a move that puts the head of the Unite union directly at odds with Jeremy Corbyn.

He said they had “the opportunity to create hundreds of thousands of new jobs” by backing the government’s decision to build a third runway.

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‘There’s no room for any new long-term fossil fuel developments,’ climate scientists say

A gas boom in the Northern Territory would contribute as much as 6.6% to Australia’s annual emissions, according to data in a report from an inquiry examining the risks associated with fracking.

The final report by the inquiry’s committee assessed the emissions from exploration, producing gas from the planned new gasfields and from burning that proportion of the gas destined for the domestic market.

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The entire population of tadpoles in Peter Malpass’s pond has been eaten by dragon fly larvae

Your report (21 June) urging gardeners to be frog friendly is, of course, to be welcomed. However, cherishing amphibians raises a dilemma because one of the major threats to frog populations is predation by dragon fly larvae, rapacious creatures up to two inches long and said to be capable of eating anything not bigger than themselves. This year not a single froglet will emerge from my pond, despite the protection given to the frog spawn during the late snow and frost. The entire population of tadpoles has been eaten by dragon fly larvae. The fact that the adult dragon fly is a magnificent creature in its own right, and, like adult frogs and toads, eats creatures we might regard as garden pests, leaves me in a quandary: is it OK to kill dragon flies to protect frogs, or should I leave it to nature to sort itself out?
Peter Malpass
Bristol

• Join the debate – email guardian.letters@theguardian.com

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Despite its potential to battle disease and hunger, genetically engineered food is still controversial

Last week, scientists from the University of Edinburgh’s Roslin Institute announced they had deleted the section of DNA that leaves pigs vulnerable to porcine reproductive and respiratory syndrome, which is estimated to cost European farmers £1.5bn a year in loss of livestock and decreased productivity. Genetically modified animals are banned from the EU food chain, but since this is a new and different technique it’s possible they’ll be appearing in bacon sandwiches in a few years.

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