Feed aggregator

England and Wales record warmest winter since 1910

The Guardian - Thu, 2017-07-27 22:44

Met Office figures for 2016 also show long-term decrease in amount of frost, while last winter was the second wettest on record across the country

The winter of 2016 was the warmest for England and Wales in records that stretch back to 1910, the Met Office’s annual State of the UK Climate report revealed on Thursday.

The average temperature from December 2015 to February 2016 was more than 2C above the long-term average across the southern half of the UK. The report also found that, over the last decade, the number of air frosts has dropped by 7% and the number of ground frosts by 9%, compared with the average between 1981-2010.

Continue reading...
Categories: Around The Web

A profile of award-winning climate scientist Kevin Trenberth | John Abraham

The Guardian - Thu, 2017-07-27 20:00

Kevin Trenberth - recent award winner - is one of the world’s foremost climate scientists

The American Geophysical Union - the pre-eminent organization of Earth scientists - presents annual awards to celebrate the achievements of scientists. The awards, which are often named after famous historical scientists, reflect the contributions to science in the area of the award namesake. With the 2017 award winners just announced, it’s appropriate to showcase one of the winners here.

The 2017 winner of the Roger Revelle medal is Dr. Kevin E. Trenberth. One of the most well-known scientists in the world, he is certainly the person most knowledgeable about climate change that I know.

Continue reading...
Categories: Around The Web

Lapland zoo polar bears enjoy snow gift

BBC - Thu, 2017-07-27 17:11
Christmas has come early for Lapland zoo polar bears with snow in July.
Categories: Around The Web

Top tips for RideLondon, the capital's cycling marathon

The Guardian - Thu, 2017-07-27 16:10

Here’s how to prepare for the 100-mile cycling event ...

Shortly before 6am on Sunday, the first of about 25,000 intrepid cyclists will set off from the Olympic Park in east London on a 100-mile trip through the capital and into the hills of Surrey, finishing on the Mall.

It is the fifth year of an event which has so far lived up to its billing of a London marathon for two wheels, part of a wider and much-enjoyed weekend of cycling activities in the capital, which has now spawned similar events elsewhere in Britain.

Continue reading...
Categories: Around The Web

Watching ice melt: inside Nasa’s mission to the north pole

The Guardian - Thu, 2017-07-27 15:00

For 10 years, Nasa has been flying over the ice caps to chart their retreat. This data is an invaluable record of climate change. But does anyone care? By Avi Steinberg

From the window of a Nasa aircraft flying over the Arctic, looking down on the ice sheet that covers most of Greenland, it’s easy to see why it is so hard to describe climate change. The scale of polar ice, so dramatic and so clear from a plane flying at 450 metres (1,500ft) – high enough to appreciate the scope of the ice and low enough to sense its mass – is nearly impossible to fathom when you aren’t sitting at that particular vantage point.

But it’s different when you are there, cruising over the ice for hours, with Nasa’s monitors all over the cabin streaming data output, documenting in real time – dramatising, in a sense – the depth of the ice beneath. You get it, because you can see it all there in front of you, in three dimensions.

Continue reading...
Categories: Around The Web

Paris 1.5-2°C target far from safe, say world-leading scientists

RenewEconomy - Thu, 2017-07-27 14:50
Targeting a limit of 1.5-2°C of warning far from safe, and will spur feedbacks with potential to run out of humanity’s control.
Categories: Around The Web

A beast of an airship follows us down to the pub

The Guardian - Thu, 2017-07-27 14:30

Sandy, Bedfordshire The Airlander 10 is a 92-metre hybrid airship-plane, full of helium and personality

Half an hour after appearing high over our washing line a giant followed us down to the pub. The church bells next door rang eight, the air was mosquito-still and then an all-consuming bass rumble filled the sky.

A puffed up grey cloud three times the length of a blue whale came overhead. People sitting at the neighbouring table glanced up, then went back to their drinks.

Continue reading...
Categories: Around The Web

EnergyAustralia: “The truth about coal is that it is not cheap”

RenewEconomy - Thu, 2017-07-27 14:19
EnergyAustralia says coal is not cheap and idea that new coal plants could reduce electricity costs is a "myth". This comes as the ACCC vows to focus on bidding practices in wholesale markets, an issue completely ignored by AEMC, the market rule maker.
Categories: Around The Web

ACT launches second phase of battery test centre, early results in

RenewEconomy - Thu, 2017-07-27 14:17
Early results suggest that lithium-ion out-performs both the advanced and traditional lead-acid battery packs in terms of round-trip efficiency.
Categories: Around The Web

Electricity sector “gold plating” behind sky-high prices – not renewables

RenewEconomy - Thu, 2017-07-27 14:13
TAI report says electricity sector gold-plating costing households $400-$500 a year. Cost of carbon price: "barely noticeable."
Categories: Around The Web

AGL expands smart technology portfolio with $13m in US start-up

RenewEconomy - Thu, 2017-07-27 14:11
AGL invests $13 million in smart lock and smart home controls start-up in US, expanding its push into new technologies.
Categories: Around The Web

Queensland launches “world’s largest” EV fast-charging network

RenewEconomy - Thu, 2017-07-27 12:46
Queensland govt launches Electric Super Highway, names first 18 locations for "green-powered" EV fast charging stations.
Categories: Around The Web

Digging for carbon cuts: How the mining industry can win with renewables

RenewEconomy - Thu, 2017-07-27 11:33
An unprecedented drop in renewable energy prices, the high energy intensity of mining, and the volatility of fossil fuel pricing have combined to create a groundbreaking opportunity for decarbonizing the mining industry.
Categories: Around The Web

UK to ban gas and diesel cars by 2040

RenewEconomy - Thu, 2017-07-27 11:30
Electric cars will soon be as cheap as gas ones, “signaling economic turmoil for oil-exporting countries.”
Categories: Around The Web

Spain’s auction allocates 3.5 GW of solar PV capacity

RenewEconomy - Thu, 2017-07-27 10:08
Solar had the largest share in Spain’s renewable energy auction, leaving wind power, which won all the allocated capacity in the previous auction, with just 720 MW.
Categories: Around The Web

WBHO to deliver largest utility-scale solar farm in WA

RenewEconomy - Thu, 2017-07-27 09:23
Perth-based business WBHO Infrastructure, in Joint Venture with Singapore based Phoenix Solar, has secured the EPC (Engineering, Procurement & Construction) contract to deliver WA’s largest solar project, Byford Solar Farm.
Categories: Around The Web

ACT recognised for forward thinking behind reverse auctions

RenewEconomy - Thu, 2017-07-27 09:12
The ACT Government’s innovative reverse auctions for renewable energy investment last night won the Innovative Solutions category of the Institute for Public Administration’s 2017 Public Sector Innovation Awards.
Categories: Around The Web

'We have got a problem with compliance': Glyde

ABC Environment - Thu, 2017-07-27 08:06
MDBA chief Phillip Glyde says it's not an acceptable state of affairs if 'the rules of racing' are not being followed and the States are gaming the Murray Darling Basin Plan.
Categories: Around The Web

300 billion litres of Murray Darling water 'lost' to infrastructure upgrades

ABC Environment - Thu, 2017-07-27 07:52
Leading water scientist Dr. John Williams says around $3bn of taxpayer money which has been paid out to improve water efficiency in the Murray Darling has dramatically reduced environmental water flows in the Basin.
Categories: Around The Web

Finally facing our water-loo: it's time to decolonise sewerage systems

The Conversation - Thu, 2017-07-27 06:14
Colonial notions of public and private space are embedded in sewage systems. Elaichi Ohyeah/Flickr, CC BY-SA

Two current global trends are set to make life rather uncomfortable for cities: climate change and the unprecedented rate of urbanisation.

This combination of extreme weather – often involving sudden deluges of water – and high population density will test even the best sewage infrastructure we have today. In the face of such pressures, how adaptable are our sewage systems?

Colonial heritage in our sewage systems

Sewage systems worldwide commonly consist of flush toilets and pipes that rely on a steady supply of water to transport and deposit bodily waste, either to a wastewater treatment plant or, failing that, simply downstream in the nearest river or straight into the ocean.

Many urbanites around the globe are using sewage systems based on a colonial-era template. Initially implemented to cure London’s “Great Stink” of 1858, when a hot summer combined with the excrement-filled River Thames to create an unbearable stench, sewer systems were public health interventions designed to remove pathogens and “miasmatic” offences associated with bodily waste.

They were first transplanted off Britain’s shores in the reconstruction of Paris from 1850–70, and since then have become embedded culture-specific notions of hygiene and sanitation around the globe.

Such colonial infrastructure is now proving increasingly problematic in the face of human-driven global trends (broadly referred to as the Anthropocene).

Using water to flush waste

A paradox of climate change is that there seems to be both more and less water. In South Asia, for example, at least 1.6 billion people struggle to find drinking water despite an abundance of water generally.

A woman siphoning water from a leaky pipe into a bucket on the side of the road during summer. Author provided

For residents of Darjeeling, India, where I am currently conducting my PhD fieldwork, this paradox is very real. Monsoons in Darjeeling last from June through August, sometimes longer, and rain falls frequently throughout the rest of the year. On the face of it, Darjeeling should have plenty of water, but in fact it faces increasingly acute shortages during the summer months from April to June.

The town’s water and waste infrastructure was built by the British in the 1930s, for what was then a population of 10,000. Its population now hovers around the 150,000 mark, and surges to more than 200,000 during peak tourist season from March to May. Despite this, there has been little to no official maintenance or upgrade since Indian independence in 1947.

In town, signs that urbanisation has outpaced infrastructure capacity are everywhere. An impressive number of pipes move water to and from the population. Along with electricity wires, these pipes traverse the city along increasingly bizarre and precarious routes. Ad hoc retrofit attempts to meet rising demand appear to be band-aid solutions and, because the pipes leak, often exacerbate contamination.

A typical open sewer in Darjeeling. Note the pipes on either side are water pipes taking drinking water to homes. Author provided

Darjeeling is instructive because it is a landscape struggling with inadequate infrastructure amid a rapidly urbanising population. In such a landscape, fresh water can be contaminated by sewage outflows, largely because the system is completely dependent on water to function.

Such over-reliance underpins another paradox: modern sewerage systems require water to work and yet, if not context-sensitive nor managed appropriately, can dirty vital waterways.

Closer to home

Australia is not immune to such problems. Our changing climate means we too face more severe droughts along with heavier rainfall events. Under these conditions, our sewage systems are under increasing stress.

Earlier this year Melbourne experienced summer flash floods which strained the city’s sewage systems, contaminating three public beaches. In February a heavy downpour in Western Australia caused concern over sewage contamination in the Swan River.

Such experiences are not isolated, and are likely to increase in incidence across the world. They provide important lessons and act as a catalyst for rethinking our relationship to water and waste, particularly amid concerns over water scarcity and extreme weather conditions in southern Australia.

Alternative futures

Many social scientists are now researching alternative forms of infrastructure that are contextually relevant, embedded in community values, and adaptable to current environmental challenges.

These alternative forms include moves to re-examine our relationship with waste in farming, use dry composting toilets, and install public bio-toilets along India’s main railway corridors.

As for my home town of Adelaide, the capital of the driest state on the driest inhabited continent on Earth, should we really continue to use water to flush bodily waste?

The Conversation

Matt Barlow 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.

Categories: Around The Web

Pages

Subscribe to Sustainable Engineering Society aggregator