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XFEL: Brilliant X-ray laser comes online
Floods, the Amazon at risk and the price of plastics – green news roundup
The week’s top environment news stories and green events. If you are not already receiving this roundup, sign up here to get the briefing delivered to your inbox
Continue reading...Will European supermarkets act over Paraguay forest destruction?
NGO Earthsight reports charcoal from the Chaco region has been sold in Aldi, Lidl and Carrefour in Spain and Germany
No tropical forests anywhere in the world are being destroyed more rapidly than the Chaco stretching across Argentina, Bolivia and Paraguay. Not the Amazon in Brazil, nor in Indonesia, Malaysia or the Democratic Republic of Congo.
At least, that is according to a University of Maryland-led study published in 2013. And the carnage continues today. In July British NGO Earthsight released a report stating that “the latest available analysis [by Paraguayan NGO Guyra], covering January 2017, suggests that the rate of deforestation has kept pace since the Maryland paper. The Paraguayan Chaco is on course to lose more than 200,000 hectares of forest this year: an area the size of Manhattan every fortnight.”
The week in wildlife – in pictures
Marabou storks, Kamchatka brown bears and playful lion cubs are among this week’s pick of images from the natural world
Continue reading...UK citizens are taking air pollution monitoring into their own hands
Thousands of people are using home air quality monitoring kits due to fears official figures are not capturing dangerous pollution levels, say Friends of the Earth
A growing number of citizens are monitoring local air quality because of fears official figures are not capturing “dangerous” levels of pollution.
The environmental charity Friends of the Earth has said 70 local groups are now using their testing kits and noted a “surprising” increase in people taking monitoring into their own hands.
Continue reading...Suffolk Wildlife Trust launches Lackford Lakes appeal
Florence: Largest asteroid in century to safely fly by Earth
Houston pastor plays piano in flooded Texas home – video
When Aric Harding, a Houston pastor and musician, returned to fetch some belongings from his home after it was flooded by Harvey, he wanted to show his son that their piano still worked. So Harding sat in the knee-deep water and played a few chords as a friend recorded the moment.
Continue reading...Popsicles of pollution: ice lollies highlight Taiwan's contaminated waterways
Students from New Taipei City collected samples from urban rivers, creeks and ports which they then froze in moulds and preserved in resin. ‘We hope when more people see this they can change their lifestyles,’ said one of the group
Continue reading...The new Great Barrier Reef pollution plan is better, but still not good enough
The draft water quality improvement plan, released by the federal and Queensland governments this week, aims to reduce the pollution flowing from water catchments to the Great Barrier Reef over the next five years.
It is part of the overarching Reef 2050 Long-Term Sustainability Plan to protect and manage the reef until mid-century.
Water quality is one of the biggest threats to the reef’s health, but the new guidelines still fall short of what’s required, given the available scientific evidence.
Read more: Cloudy issue: we need to fix the Barrier Reef’s murky waters.
The draft plan, which is open for comment until October, presents several important and commendable advances in the management of water quality on the Great Barrier Reef. It addresses all land-based sources of water pollution (agricultural, urban, public lands and industrial) and includes social, cultural and economic values for the first time.
The principal sources of pollution are nitrogen loss from fertiliser use on sugar cane lands, fine sediment loss from erosion on grazing lands, and pesticide losses from cropping lands. These are all major risk factors for the Great Barrier Reef.
The draft plan also presents updated water quality targets that call for reductions in run-off nutrients and fine sediments by 2025. Each of the 35 catchments that feeds onto the reef has its own individual set of targets, thus helping to prioritise pollution-reduction measures across a region almost as large as Sweden.
The reef’s still sufferingThe Great Barrier Reef suffered coral bleaching and death over vast areas in 2016, and again this year. The 2017 Scientific Consensus Statement, released with the draft water quality plan (and on which one of us, Jon Brodie, was an author), reports:
Key Great Barrier Reef ecosystems continue to be in poor condition. This is largely due to the collective impact of land run-off associated with past and ongoing catchment development, coastal development activities, extreme weather events and climate change impacts such as the 2016 and 2017 coral bleaching events.
Stronger action on the local and regional causes of coral death are seen to be essential for recovery at locations where poor water quality is a major cause of reef decline. These areas include mid-shelf reefs in the Wet Tropics region damaged by crown of thorns starfish, and inner-shelf reefs where turbid waters stop light reaching coral and seagrass. Human-driven threats, especially land-based pollution, must be effectively managed to reduce the impacts on the Great Barrier Reef.
But although the draft plan provides improved targets and a framework for reducing land-based pollution, it still doesn’t reflect the severity of the situation. The 2017 Scientific Consensus Statement reports that “current initiatives will not meet the water quality targets” by 2025.
This is because the draft plan does not provide any major new funding, legislation or other initiatives to drive down land-based pollution any further. As the statement explains:
To accelerate the change in on-ground management, improvements to governance, program design, delivery and evaluation systems are urgently needed. This will require greater incorporation of social and economic factors, better targeting and prioritisation, exploration of alternative management options and increased support and resources.
Read more: The Great Barrier Reef’s safety net is becoming more complex but less effective
The draft plan calls on farmers to go “beyond minimum standards” for practices such as fertiliser use in sugar cane, and minimum pasture cover in cattle grazing lands. But even the minimum standards are unlikely to be widely adopted unless governments implement existing legislation to enforce the current standards.
The draft plan is also silent on the impact of land clearing on water quality, and the conversion of grazing land to intensively farmed crops such as sugar cane, as proposed in the White Paper on Developing Northern Australia.
The federal and Queensland governments have committed A$2 billion over ten years to protect the Great Barrier Reef. Under the draft plan, about half of this (A$100 million a year) will be spent on water quality management. This is not an increase in resourcing, but rather the same level of funding that has been provided for the past seven years.
More than loose changeThere is a very strong business case for major increases in funding to protect the Great Barrier Reef. Even with conservative assumptions, the economics firm Jacobs has estimated that protecting the industries that depend on the reef will require A$830 million in annual funding – more than four times the current level.
Read more: What’s the economic value of the Great Barrier Reef? It’s priceless.
The draft water quality plan acknowledges the need for a “step change” in reef management, and to “accelerate our collective efforts to improve the land use practices of everyone living and working in the catchments adjacent to the Reef”.
This need is echoed in many other reports, both government and scientific. For example, the 2017 Scientific Consensus Statement makes several wide-ranging recommendations.
One of them is to make better use of existing legislation and policies, including both voluntary and regulatory approaches, to improve water quality standards.
This recommendation applies to both Commonwealth and Queensland laws. These include the federal Great Barrier Reef Marine Park Act 1975, which restricts or bans any activities that “may pollute water in a manner harmful to animals and plants in the Marine Park”, and the Environment Protection and Biodiversity Conservation Act 1999, which prohibits any action, inside or outside the marine park, that affects the Great Barrier Reef’s World Heritage values.
Another recommendation is to rethink existing land-use plans. For instance, even the best practice in sugar cane farming is inconsistent with the nitrogen fertiliser run-off limits needed to meet water quality guidelines. One option is to shift to less intensive land uses such as grazing in the Wet Tropics region – a priority area for nitrate fertiliser management because of its link to crown of thorns starfish outbreaks. This option is being explored in a NESP project.
These changes would require significantly increased funding to support catchment and coastal management and to meet the draft plan’s targets. Government commitment to this level of management is essential to support the resilience of the Great Barrier Reef to climate change.
Jon Brodie receives funding from the Australian Government; Queensland Government; UNEP; the Bay of Plenty Regional Council, NZ; Melbourne Water; NSW EPA. He was also an author of the 2017 Scientific Consensus Statement: Land Use Impacts on Great Barrier Reef Water Quality and Ecosystem Condition.
Laurence McCook is a Partner Investigator in the ARC Centre of Excellence for Coral Reef Studies.
Alana Grech does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.
Australia's record-breaking winter warmth linked to climate change
On the first day of spring, it’s time to take stock of the winter that was. It may have felt cold, but Australia’s winter had the highest average daytime temperatures on record. It was also the driest in 15 years.
Back at the start of winter the Bureau of Meteorology forecast a warm, dry season. That proved accurate, as winter has turned out both warmer and drier than average.
Read more: Australia’s dry June is a sign of what’s to come
While we haven’t seen anything close to the weather extremes experienced in other parts of the world, including devastating rainfalls in Niger, the southern US and the Indian subcontinent all in the past week, we have seen a few interesting weather extremes over the past few months across Australia.
Much of the country had drier conditions than average, especially in the southeast and the west. Bureau of MeteorologyDrier weather than normal has led to warmer days and cooler nights, resulting in some extreme temperatures. These include night-time lows falling below -10℃ in the Victorian Alps and -8℃ in Canberra (the coldest nights for those locations since 1974 and 1971, respectively), alongside daytime highs of above 32℃ in Coffs Harbour and 30℃ on the Sunshine Coast.
During the early part of the winter the southern part of the country remained dry as record high pressure over the continent kept cold fronts at bay. Since then we’ve seen more wet weather for our southern capitals and some impressive snow totals for the ski fields, even if the snow was late to arrive.
This warm, dry winter is laying the groundwork for dangerous fire conditions in spring and summer. We have already had early-season fires on the east coast and there are likely to be more to come.
Climate change and record warmthAustralia’s average daytime maximum temperatures were the highest on record for this winter, beating the previous record set in 2009 by 0.3℃. This means Australia has set new seasonal highs for maximum temperatures a remarkable ten times so far this century (across summer, autumn, winter and spring). The increased frequency of heat records in Australia has already been linked to climate change.
Winter 2017 stands out as having the warmest average daytime temperatures by a large margin. Bureau of MeteorologyThe record winter warmth is part of a long-term upward trend in Australian winter temperatures. This prompts the question: how much has human-caused climate change altered the likelihood of extremely warm winters in Australia?
I used a standard event attribution methodology to estimate the role of climate change in this event.
I took the same simulations that the Intergovernmental Panel on Climate Change (IPCC) uses in its assessments of the changing climate, and I put them into two sets: one that represents the climate of today (including the effects of greenhouse gas emissions) and one with simulations representing an alternative world that excludes our influences on the climate.
I used 14 climate models in total, giving me hundreds of years in each of my two groups to study Australian winter temperatures. I then compared the likelihood of record warm winter temperatures like 2017 in those different groups. You can find more details of my method here.
I found a stark difference in the chance of record warm winters across Australia between these two sets of model simulations. By my calculations there has been at least a 60-fold increase in the likelihood of a record warm winter that can be attributed to human-caused climate change. The human influence on the climate has increased Australia’s temperatures during the warmest winters by close to 1℃.
More winter warmth to comeLooking ahead, it’s likely we’re going to see more record warm winters, like we’ve seen this year, as the climate continues to warm.
The likelihood of winter warmth like this year is rising. Best estimate chances are shown with the vertical black lines showing the 90% confidence interval. Author providedUnder the Paris Agreement, the world’s nations are aiming to limit global warming to below 2℃ above pre-industrial levels, with another more ambitious goal of 1.5℃ as well. These targets are designed to prevent the worst potential impacts of climate change. We are currently at around 1℃ of global warming.
Even if global warming is limited to either of these levels, we would see more winter warmth like 2017. In fact, under the 2℃ target, we would likely see these winters occurring in more than 50% of years. The record-setting heat of today would be roughly the average climate of a 2℃ warmed world.
While many people will have enjoyed the unusual winter warmth, it poses risks for the future. Many farmers are struggling with the lack of reliable rainfall, and bad bushfire conditions are forecast for the coming months. More winters like this in the future will not be welcomed by those who have to deal with the consequences.
Climate data provided by the Bureau of Meteorology. For more details about winter 2017, see the Bureau’s Climate Summaries.
You can find more details on the specific methods applied for this analysis here.
Andrew King receives funding from the ARC Centre of Excellence for Climate System Science.
Summer washout drowns hopes of UK wildlife bonanza
August rains wiped out the promise of a long-awaited bumper summer for birds, insects and plants, say experts, though autumn will be good for fungi
The summer holiday washout wiped out a much needed bumper season for wildlife across the UK, according to wildlife experts at the National Trust.
A normal winter and balmy spring provided ideal conditions for birds, insects and plants but the heavy rains that rolled in during August dampened the promised bonanza. However, the weather patterns should see a good autumn for fungi and some nuts and berries.
Continue reading...Australia’s energy future on grid edge – can AEMO give it a push?
Tough little plants surface briefly on the lake's retreating edge
Chew Valley Lake, Somerset Redshank, mud-wort, cudweed and crowfoot – their names are peasant-simple – rise from the mud like miniature Grendels
The lake in late summer is brimming with life. Swallows and martins sweep through rafts of duck, coot and gulls, sometimes dipping to sip flies from the surface. The shoreline is lush with plants and wet with drizzle. We push through shoulder-high bushes of water mint and spires of gypsywort and golden dock.
This is the seasonal outburst of the inundation community, the plants that spring up on the mud of the lake edge. The vegetation may have a grand title but the plants themselves have earthy, Old English names, mud-savoury and peasant-simple.
Continue reading...