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IPPR study on delivering clean air in the capital comes as the high court is due to rule on the UK government’s air quality plan

Ridding inner London of virtually all diesel vehicles would solve the capital’s air pollution crisis, according to research published as the high court is due to rule on the government’s air quality plan.

Illegal levels of air pollution cause about 9,500 early deaths a year in London and a new report from the Institute for Public Policy Research (IPPR) sets out a series of measures to solve the problem.

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Wenlock Edge, Shropshire Used to control crop pests, this beetle also has a frightening appetite for other ladybirds and the eggs of butterflies

Tricked out in Halloween orange and black, a harlequin moves awkwardly through a micro woodland of moss on the concrete as if it were wandering through an alien world, which in some respects it is. This is Harmonia axyridis succinea, a beetle that began its global travels somewhere in eastern Asia between Kazakhstan and Japan.

Because its larva has an insatiable appetite for aphids and other small insects it was taken to America in the 1980s for the biological control of crop pests. It was so successful that it has been transported into European agriculture, too. To show its appreciation the beetle, called the Halloween ladybug in the US and the harlequin ladybird in Europe, has had a population explosion.

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The first large scale wind farm in Queensland gets financial backing and will begin construction next month.

Environmental credentials of UK Green Investment Bank will be kept intact via special voting powers following likely sale to Macquarie Group.

New report says Australia on track to miss its 2030 emissions reduction target by a "large margin," and that if other countries followed Australia's lead, global warming would exceed 3°C to 4°C.

China may scale down plans for nuclear power because of slowing demand for electricity and construction setbacks.

Toyota’s somewhat baffling unwillingness to embrace all-electric vehicles may finally be coming to an end.

ARENA-backed ANU study to map Australia’s potential for pumped hydro energy storage – a cheap and proven way to integrate large-scale renewables.

BNEF report says offshore wind LCOE has fallen to a benchmark estimate of $126/MWh on the back of auction programs in Netherlands, Denmark.

This week 50 nations have come together to protect an area of ocean twice the size of NSW.

Long Beach quake of 1933 in which up to 120 people died is among several possibly linked with early extraction methods

Several damaging Los Angeles-area earthquakes of the 1920s and 1930s, including the deadliest ever in southern California, may have been brought on by oil production during the region’s drilling boom of that era, US government scientists have reported.

The findings of a possible link between oil extraction and seismic events in the LA basin do not apply to modern industry practices but suggest the natural rate of quake occurrences in the region may be lower than previously calculated, the scientists said.

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Radical plans to overhaul the system of managing flood risk are called for by the Commons environment and rural affairs committee.

A team of scientists at Royal Botanical Gardens Kew embarks on the mammoth task of creating a single database of the world's medicinal plant species.

Strong winds that blew Malcolm Turnbull's South Australia itinerary off course this week provided more than 100% of the state's electricity needs for much of the day.

A mothballed uranium mine in north Queensland is at the centre of environmental contamination concerns.

One of the world's biggest telescope projects might be forced to move its location to a different continent.

There remains the potential for future quakes in Italy’s Apennines region, say scientists who have reviewed the latest satellite maps of the region.

Pressure is mounting for Adani’s Carmichael coal mine to proceed in inland Queensland. Recently the state government quietly gave the project “critical infrastructure” status to prioritise its development.

Providing this level of government status to a private enterprise is unusual – the last time it happened was in the early 2000s, and it is usually reserved for projects associated with national security, public education and health.

In response to delays and finance issues, Adani has also reportedly scaled back its initial proposal to increase the mine’s viability. There are also growing political calls to weaken the ability of environmental groups to challenge infrastructure projects.

Others have commented on the mine’s issues around employment, finance, and indigenous and rural communities. But as ecologists, there are four good reasons why we believe the mine should not go ahead.

Climate change

To meet the obligations under the Paris climate agreement to limit warming to well below 2℃, it is widely accepted that 90% of Australia’s coal will need to stay in the ground.

The proposed extraction of 2.3 billion tonnes of coal from the Carmichael mine flies in the face of global efforts to stop climate change. The emissions from the coal from this one mine would exceed 0.5% of the entire global carbon budget – the total amount of carbon than can be emitted without exceeding 2℃ warming.

Put another way, the 4.7 billion tonnes of greenhouse gas emissions associated with the mine will be equivalent to nine times Australia’s overall emissions in 2014.

Yet these emissions have been given little consideration in the mine’s approval process. Adani’s Environmental Impact Statement makes little reference to the mine’s “downstream” emissions, and Australia’s former environment minister Greg Hunt, in his reasons for approving the mine, said the emissions would be “managed and mitigated through national and international emissions control frameworks”, including in those countries that import the coal.

Following an appeal challenging Hunt’s assertion that these emissions would have no directly quantifiable impact on the Great Barrier Reef, the Federal Court found that the minister was entitled to find that the burning of the coal will have no relevant impact on the reef.

The Great Barrier Reef

The shipping of coal from the Carmichael mine is contingent upon redeveloping the shipping port at Abbot Point, which requires dredging the seabed.

Following public opposition to dumping dredge spoil at sea, the most recently approved proposal is to dredge 1.1 million cubic metres of the seabed and dump the spoil on land next to the Caley Valley Wetlands.

The wetlands are important habitat for at least 22 migratory shore birds listed under the national environmental legislation, so the current plan is still contentious.

The current plan to dump the dredge spoil on land still won’t save the reef because the actual dredging process removes the seabed, along with the seagrass and animals that survive there.

Dredging also releases fine sediments, reducing water quality while smothering surrounding seagrass beds and coral reefs, with some models predicting the spread of fine sediments up to 200km from where the activity took place, within 90 days.

Corals exposed to dredge material are twice as prone to suffer disease. Improving water quality is a key factor for increasing the resilience of coral reefs to major bleaching events.

Water

The Carmichael Mine as currently proposed would extract 12 billion litres of water each year. Removing this water to access the coal seam will reduce water pressure in the aquifer (rock that stores water underground), with knock-on effects. The mine is situated close to the Great Artesian Basin, a key resource for agriculture across inland Australia

For instance, this drawdown could reduce water reaching the Mellaluka and Doongmabulla Springs Complexes, which have exceedingly high conservation value. These springs are some of the largest examples remaining and provide habitat for many species of specialised plants that are only known from spring-fed wetlands.

If the springs go dry, even temporarily, endemic species will not survive and will become extinct at the site.

Removing groundwater is expected to increase the duration of zero- or low-flow periods in the Carmichael River system. The communities and ecosystems in the region are already highly reliant on groundwater, due to variable surface waters. This could also affect the acidity and salinity of soils.

Clearing the land for the mine itself – an area equivalent to Queensland’s Moreton Island - will likely reduce local rainfall considerably.

Due to the high uncertainty surrounding groundwater, the independent scientific committee recommended improvements in groundwater modelling and monitoring before proceeding with the project. The high degree of uncertainty and inadequate treatment of groundwater impacts in the Environmental Impact Statement were the subject of legal proceedings in the Land Court in 2015.

Threatened species

The Carmichael mine site is home to the largest known population of the endangered southern Black-throated finch (Poephila cincta cincta), which has lost 80% of its former habitat.

The intact areas of continuous habitat in this region - such as that at the mine site - have so far remained in good condition and relatively free of the invasive weed species that are contributing to the finch’s decline in other parts of its range.

The Black-throated Finch Recovery Team highlighted their concern over the Carmichael development with state and federal agencies.

Adani has proposed to offset the loss of finch habitat resulting from the mine by protecting alternative, nearby habitat. But losing the best remaining habitat means the most viable population will be compromised. Experts have warned that offseting the loss of habitat from mine development will not avoid serious detrimental impacts on the finch.

Keeping this habitat intact, continuous and unfragmented will be key to maintaining its suitability for the finch. The only way to avoid severely impacting the finch is to avoid destroying its high-quality habitat – which would mean not digging the mine in these areas.

A brighter future

Giving the mine “critical infrastructure” status allows special dispensations to ignore normal approval processes. And this decision sends a signal to the wider community that this type of short-term thinking is front and centre in the state government’s mind.

Given the clear environmental impacts this mine will have, not just for the region but for the whole planet, we question the effectiveness of Australia’s current environmental laws that have allowed it to be approved. We believe it is time to place the entire social and environmental costs and benefits of this mine on the public table, and ask the question of the politicians who are meant to make decisions in our best interest: is the short-term profit of selling some coal worth it?

This article was written with the help of Claire Stewart and Courtney Jackson, students in the Masters of Conservation Science program and members of the Green Fire Science Lab at the University of Queensland.

April Reside receives funding from NESP Threatened Species Recovery Hub. She is a scientific advisor for the Black-throated Finch Recovery Team and is on Birdlife Australia's Research and Conservation Committee.

Bonnie Mappin receives funding from the University of Queensland Research Scholarship.

James Watson receives funding from the Australian Research Council. He is the Director of Science and Research Initiative of the Wildlife Conservation Society.

Sarah Chapman is supported by an APA Scholarship. She is a PhD candidate at the University of Queensland.

Stephen Kearney is supported by an APA Scholarship and has received funding from NESP Threatened Species Recovery Hub.

Thousands of baby Taricaya turtles have been released into the Peruvian Amazon as part of an effort to save them from extinction.

Report estimates continent is losing out on £25m in tourism spending each year due to the illegal wildlife trade that is killing elephants for their ivory

The poaching crisis wiping out Africa’s elephants is costing the continent’s economies millions in lost tourism revenue, according to a new study.

Researchers looked at visitor and elephant data across 25 countries, and modelled financial losses from fewer visitors in protected areas due to the illegal wildlife trade, which has caused elephant numbers to plummet by more than 100,000 in the last decade. They concluded that Africa was most likely losing $25m in tourism revenue a year.

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