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Food and farming 'needs total rethink'
'Alarming' rise in Queensland tree clearing as 400,000 hectares stripped
Deputy premier brands Australia ‘deforestation hotspot’ after a 45% jump in her state’s reef catchment clearing
Queensland underwent a dramatic surge in tree clearing – with the heaviest losses in Great Barrier Reef catchments – in the year leading up to the Palaszczuk government’s thwarted bid to restore protections.
Figures released on Thursday showed a 33% rise in clearing to almost 400,000 hectares in 2015-16, meaning Queensland now has two-thirds the annual rate of deforestation in the Brazilian Amazon.
Continue reading...Australia adds 97MW rooftop solar in September, set for record 1GW in 2017
Invitation to comment on listing assessment for Notomys aquilo (northern hopping-mouse)
Vast animal-feed crops to satisfy our meat needs are destroying planet
WWF report finds 60% of global biodiversity loss is down to meat-based diets which put huge strain on Earth’s resources
The ongoing global appetite for meat is having a devastating impact on the environment driven by the production of crop-based feed for animals, a new report has warned.
The vast scale of growing crops such as soy to rear chickens, pigs and other animals puts an enormous strain on natural resources leading to the wide-scale loss of land and species, according to the study from the conservation charity WWF.
Continue reading...Country diary: strange spiders and help from the web
Crook, County Durham Within a day of uploading a picture of what I thought was one species of harvestman, I was told it was a more interesting alien
We may be living in a golden age for natural historians. The old naturalists’ field clubs, rooted in the Victorian passion for collecting and sharing knowledge of flora and fauna, may be in decline, but, thanks to social media, it has never been easier to correspond with a helpful expert when you need one.
Post a picture of, say, an unfamiliar spider on the internet and it’s likely that someone out there will identify it for you.
Continue reading...Melbourne's Yarra river deadliest for drowning deaths in Australia
Men in late 20s and early 30s with alcohol or drugs in their system the most frequent victims of fatal river drowning
Risk-taking young men who drown trying to swim Melbourne’s Yarra river are making it the deadliest inland river per metre in Australia.
New data shows alcohol, drugs, tourists and young men who dare each other to swim the river are contributing to regular drownings.
Continue reading...CS Energy signs 10 year agreement with Kennedy Energy Park
IEA: Renewable electricity set to grow 40% globally by 2022
Stunning new low for solar PV as even IEA hails “age of solar”
Samsung chosen for new 30MW battery storage facility in S.A.
Australia’s first solar farm co-located with wind park begins production
In energy and transportation, stick it to the orthodoxy!
US plan to defibrillate failing coal plants is part of a global trend
SS Macumba to be declared historic shipwreck
Athenia: Is this the wreck of the first ship to be sunk in WW2?
Many utilities believe cyberattacks could bring down the electric distribution grid
Romilly Madew wins prestigious international sustainability award
Europe will benefit hugely from keeping global warming to 1.5°C
From heatwaves to intense rainfall and severe cold weather, Europe experiences its fair share of weather extremes.
In an open access study, published in Environmental Research Letters, David Karoly and I have found that without limiting global warming, Europe is likely to see even more severe heat, less frequent extreme cold, and more intense rain events.
The Paris Agreement of December 2015 aims to limit the global temperature increase to “well below 2℃ above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5℃”, so as to “significantly reduce the risks and impacts of climate change”.
Read more: What is a pre-industrial climate and why does it matter?
Our analysis compares temperature and rainfall extremes under the 1.5℃ and 2℃ levels of global warming, with these same events in the current climate (with global warming of just over 1℃) and a pre-industrial climate.
Hotter, and more frequent, heat extremesAs the world warms up, so does Europe, although more in the Mediterranean and the east and less over Scandinavia and the British Isles.
We studied changes in a few different heat events, including hot summers like the record of 2003 in Central Europe. A blocking high pressure pattern led to persistent sunny hot weather across much of the continent, which dried out the region and enhanced the heat. Temperature records tumbled across the continent, with new national records for daily maximum temperatures in France, the UK and other countries. Previous work has already found a clear human fingerprint in both the event itself and the excess deaths associated with the heat.
Our study projects hot summers like 2003 will become more frequent at 1.5℃ and 2℃ of global warming. At 2℃ of global warming, Central European hot summers like 2003 would very likely occur in most years.
Hot European summers like 2003 become more frequent at higher levels of global warming. Bars show best estimates of the chance of an event per year, with the black lines showing 90% confidence intervals. Author providedWe also find an increasing likelihood of events like the recent record hot year in Europe in 2016 and the record hot year in Central England in 2014 under the Paris Agreement’s targeted levels of global warming.
… But fewer, and less intense, cold extremesThe December of 2010 was exceptionally cold across the British Isles, as a lack of weather systems crossing the Atlantic allowed air from the north and the east to frequently cross the region. There was a new cold temperature record for Northern Ireland and persistent cold weather across the UK and Ireland, with long runs of sub-zero days. Heavy snowfall caused widespread disruption for days at a time.
A snowy scene at Worcester Cathedral in December 2010. David KingOur analysis finds that such a cold December was already very unlikely to occur in the current climate, and would be extremely unlikely under either 1.5℃ or 2℃ of global warming. Future cold weather events would still be associated with similar weather patterns, but the background warming in the climate system would make them less intense than in the world of today or under pre-industrial conditions.
When it rains, it poursWe also studied extreme rain events, in particular the heavy rain that led to large-scale flooding in England and Wales in May, June and July of 2007. Low pressure systems passed over the British Isles almost continually for that three-month period, so the rain was falling on already saturated ground. On July 19 and 20 more than 100mm of rain fell on a broad swathe of the English Midlands. This record-breaking rainfall resulted in some of the worst floods in British history.
The River Teme near Worcester, England in flood in July 2007. David KingExtended rainy periods like May-July 2007 are very rare, and not projected to become more frequent at 1.5℃ or 2℃ of global warming.
However, extreme rainfall days like we saw during that period are projected to become both more frequent and more intense in a warmer world. In a 2℃ world we would expect very heavy rain days to be at least 70% more frequent than in the current climate over the UK and Ireland.
Clear benefits to keeping a lid on global warmingMany of the most costly extreme weather events in Europe, in particular extreme heat and intense rainfall events, are projected to become more common, even at the relatively low levels of global warming that are being targeted under the Paris Agreement.
More frequent heat extremes expected as the globe warms up. Best estimates of the likelihood of extreme events are shown (with 90% confidence intervals in parentheses). T means average temperature and R means total rainfall. TXx and TNn mean the hottest daily maximum and coldest daily minimum, respectively, while Rx1day means the wettest single day. Author providedThe worst impacts of these events can be avoided through improving the planning and responses for such events, whether it is increasing support for the elderly in France during summer heatwaves or improving flood protection on major rivers in Britain.
However, limiting global warming to 1.5℃, rather than 2℃ or more, would reduce the frequency with which these extreme event responses would need to be implemented.
Put simply, to prevent a more extreme future for Europe’s weather, we need to keep the lid on global warming.
DisclosureAndrew King receives funding from the ARC Centre of Excellence for Climate System Science.