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Did the first flower look like this?

BBC - Wed, 2017-08-02 01:18
All living flowers ultimately derive from a single ancestor that lived about 140 million years ago, a study suggests.
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Over 1,000 people killed in India as human and wildlife habitats collide

The Guardian - Wed, 2017-08-02 00:02

Elephant and tiger territories are shrinking as India’s growing population encroaches on wild spaces causing an increase in fatalities

A deadly conflict is under way between India’s growing population and its wildlife confined to ever-shrinking forests and grasslands. Data shows that about one person has been killed on average every day for the past three years by roaming tigers or rampaging elephants.

Statistics released this week by India’s environment ministry reveal that 1,144 people were killed between April 2014 and May 2017. That figure breaks down to 426 human deaths in 2014-15, and 446 the following year. The ministry released only a partial count for 2016-17, with 259 people killed by elephants up to February of this year, and 27 killed by tigers through May.

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Utilities companies won't let you sell your own solar power. Why not?

The Guardian - Wed, 2017-08-02 00:00

The electric utility sector is broken – but the transformation we need will be virtually impossible so long as a handful of wealthy elites are calling the shots

A new report from the US-based Energy and Policy Institute last week found that investor-owned utilities have known about climate change for nearly 50 years – and done everything in their power to stop governments from doing anything about it.

From their commitment to toxic fuels to their corrosive influence on our democracy to their attempts to price-gouge ratepayers, it’s long past time to bring the reign of privately-owned electric utilities to an end.

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Meat industry blamed for largest-ever 'dead zone' in Gulf of Mexico

The Guardian - Tue, 2017-08-01 21:19

A new report shows toxins from companies like Tyson Foods are pouring into waterways in the gulf and surrounds, causing marine life to leave or die

The global meat industry, already implicated in driving global warming and deforestation, has now been blamed for fueling what is expected to be the worst “dead zone” on record in the Gulf of Mexico.

Toxins from manure and fertiliser pouring into waterways are exacerbating huge, harmful algal blooms that create oxygen-deprived stretches of the gulf, the Great Lakes and Chesapeake Bay, according to a new report by Mighty, an environmental group chaired by former congressman Henry Waxman.

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Wildlife on your doorstep: share your August photos

The Guardian - Tue, 2017-08-01 20:30

Whether basking in sunshine in the northern hemisphere or fighting cooler temperatures in the south, we’d like to see the wildlife you discover

Wherever you are in the world and however professional or amateur your photography set up, we would like to see your images of the wildlife living near you.

Related: Otters, geese and grebes: your photos as the Wetland Trust turns 70

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Tornado creates amazing Dorset water spout

BBC - Tue, 2017-08-01 20:21
A number of people across Weymouth reported seeing the phenomena earlier.
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Underground magma triggered Earth’s worst mass extinction with greenhouse gases | Howard Lee

The Guardian - Tue, 2017-08-01 20:00

There are parallels between today’s and past greenhouse gas-driven climate changes

Coincidence doesn’t prove causality, as they say, but when the same two things happen together over and over again through the vast span of geological time, there must be a causal link. Of some 18 major and minor mass extinctions since the dawn of complex life, most happened at the same time as a rare, epic volcanic phenomenon called a Large Igneous Province (LIP). Many of those extinctions were also accompanied by abrupt climate warming, expansion of ocean dead zones and acidification, like today.

Earth’s most severe mass extinction, the “Great Dying,” began 251.94 million years ago at the end of the Permian period, with the loss of more than 90% of marine species. Precise rock dates published in 2014 and 2015 proved that the extinction coincided with the Siberian Traps LIP, an epic outpouring of lava and intrusions of underground magma covering an area of northern Asia the size of Europe.

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Man and dog pulled from car caught in Colorado floods – video

The Guardian - Tue, 2017-08-01 19:40

Emergency services rescue a man and his dog stuck in a car caught in flood waters in Colorado on Sunday. Rescuers use a crane to move the man and his pet to safety. The car was parked off a road in Fremont County when the water hit

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Wild tigers of Bhutan – in pictures

The Guardian - Tue, 2017-08-01 15:30

Rare images of wild tigers in Bhutan captured by camera traps set up in a high altitude wildlife corridor verify that tigers and other animals are using stretches of land that connect protected areas. Photojournalist and filmmaker Emmanuel Rondeau undertook a three month expedition, supported by WWF and the Bhutanese government, to document tigers. His work reveals corridors are lifelines to otherwise isolated populations of tigers and other wildlife, and are critical to their genetic diversity, conservation and growth

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Will solar powered cars ever be real?

RenewEconomy - Tue, 2017-08-01 15:02
The Sunswift team has designed and built Eve to be registered as a road legal sports car, representing a shift in solar powered transport from conceptual to commercial vehicle standards.
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How much will a Tesla Model 3 cost in Australia?

RenewEconomy - Tue, 2017-08-01 15:01
The best way to estimate the prices is to use Tesla’s own configuration prices for the USA/Aus Model S and then scale them for the lower numbers.
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The good news and bad news about the rare birds of Papua New Guinea

The Conversation - Tue, 2017-08-01 14:42

The rainforests of Papua New Guinea are home to one of the richest bird populations in the world. But many are threatened by logging and palm oil farming.

Now, a team of researchers led by Edith Cowan University have surveyed the PNG island of New Britain to see how the bird population is faring.

The good news: several bird species, like the Blue-eyed Cockatoo, were found to be doing better than before.

The bad news: the researchers saw only a few New Britain Kingfishers, and some vulnerable species, like the New Britain Bronzewing, Golden Masked-owl and Bismarck Thicketbird, were not seen at all.

Their results, recently published in the journal Bird Conservation International, help to inform the International Union for Conservation of Nature and Natural Resources (IUCN) Red List of Threatened Species.

The Conversation

Robert Davis 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.

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Welfare lobby’s misguided and self-defeating attack on solar

RenewEconomy - Tue, 2017-08-01 14:35
Welfare lobby is right to rail against Australia’s ridiculous electricity prices, but echoing fossil fuel talking points against solar and other new technologies is self defeating.
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Flowers work their healing magic on the old station platforms

The Guardian - Tue, 2017-08-01 14:30

Millers Dale, Derbyshire A galaxy of tiny purple globes sway where once the milk churns waited for the night train to London

The old railway station in this part of Derbyshire’s Wye valley presents an astonishing happenstance of mixed colour. There is the Van Gogh yellow of the ragwort and the dark mullein spikes. There are the blended lilacs of field scabious and the rose shades from wild marjoram and over most of the area towers a canopy of greater and black knapweed flowers creating a galaxy of tiny purple globes. In the wind, all these colours sway and mingle.

My favourite of all is in the blooms of the bloody cranesbill. It is intriguing that botanists used body parts to invoke its hue while the makers of matte lipstick call the same shade “pink peony”. Look closely at the petals and they comprise fields of exquisite magenta veined with red.

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Australia solar market heads for 12GW by 2020

RenewEconomy - Tue, 2017-08-01 12:50
Australia's installed solar PV capacity set to double in three years, according to latest APVI data, as the big solar market gears back up.
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GE wins South Australia tender for back-up generators

RenewEconomy - Tue, 2017-08-01 12:49
GE wins tender for back-up generator, and will install mobile units using diesel this summer, before turning them into longer-term gas-fired units.
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Climate change set to increase air pollution deaths by hundreds of thousands by 2100

The Conversation - Tue, 2017-08-01 11:57

Climate change is set to increase the amount of ground-level ozone and fine particle pollution we breathe, which leads to lung disease, heart conditions, and stroke. Less rain and more heat means this pollution will stay in the air for longer, creating more health problems.

Our research, published in Nature Climate Change, found that if climate change continues unabated, it will cause about 60,000 extra deaths globally each year by 2030, and 260,000 deaths annually by 2100, as a result of the impact of these changes on pollution.

This is the most comprehensive study to date on the effects of climate change on global air quality and health. Researchers from the United States, the United Kingdom, France, Japan and New Zealand between them used nine different global chemistry-climate models.

Most models showed an increase in likely deaths – the clearest signal yet of the harm climate change will do to air quality and human health, adding to the millions of people who die from air pollution every year.

Read more: Can we blame climate change for thunderstorm asthma?

Stagnant air

Climate change fundamentally alters the air currents that move pollution across continents and between the lower and higher layers of the atmosphere. This means that where air becomes more stagnant in a future climate, pollution stays near the ground in higher concentrations.

Ground-level ozone is created when chemical pollution (such as emissions from cars or manufacturing plants) reacts in the presence of sunlight. As climate change makes an area warmer and drier, it will produce more ozone.

Fine particles are a mixture of small solids and liquid droplets suspended in air. Examples include black carbon, organic carbon, soot, smoke and dust. These fine particles, which are known to cause lung diseases, are emitted from industry, transport and residential sources. Less rain means that fine particles stay in the air for longer.

While fine particles and ozone both occur naturally, human activity has increased them substantially.

The Intergovernmental Panel on Climate Change has used four different future climate scenarios, representing optimistic to pessimistic levels of emissions reduction.

In a previous study, we modelled air pollution-related deaths between 2000 and 2100 based on the most pessimistic of these scenarios. This assumes large population growth, modest improvements in emissions-reducing technology, and ineffectual climate change policy.

That earlier study found that while global deaths related to ozone increase in the future, those related to fine particles decrease markedly under this scenario.

Emissions will likely lead to deaths

In our new study, we isolated the effects of climate change on global air pollution, by using emissions from the year 2000 together with simulations of climate for 2030 and 2100.

The projected air pollutant changes due to climate change were then used in a health risk assessment model. That model takes into account population growth, how susceptible a population is to health issues and how that might change over time, and the mortality risk from respiratory and heart diseases and lung cancer.

In simulations with our nine chemistry-climate models, we found that climate change caused 14% of the projected increase in ozone-related mortality by 2100, and offset the projected decrease in deaths related to fine particles by 16%.

Our models show that premature deaths increase in all regions due to climate change, except in Africa, and are greatest in India and East Asia.

Using multiple models makes the results more robust than using a single model. There is some spread of results amongst the nine models used here, with a few models estimating that climate change may decrease air pollution-related deaths. This highlights that results from any study using a single model should be interpreted with caution.

Australia and New Zealand are both relatively unpolluted compared with countries in the Northern Hemisphere. Therefore, both ozone and fine particle pollution currently cause relatively few deaths in both countries. However, we found that under climate change the risk will likely increase.

This paper highlights that climate change will increase human mortality through changes in air pollution. These health impacts add to others that climate change will also cause, including from heat stress, severe storms and the spread of infectious diseases. By impacting air quality, climate change will likely offset the benefits of other measures to improve air quality.

The Conversation

Guang Zeng receives funding from the New Zealand Government's Ministry of Business, Innovation and Employment (MBIE) through their Strategic Science Investment Fund.

Jason West receives funding from the US Environmental Protection Agency, NASA, National Science Foundation, and the National Institute of Environmental Health Sciences.

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Koch front group is putting out misleading attack ads on electric vehicles

RenewEconomy - Tue, 2017-08-01 11:20
Petrochemical billionaires Charles and David Koch, who have underwritten attacks on climate science, have launched a series of videos attacking electric vehicles.
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Study finds storage prices falling faster than PV and wind technologies

RenewEconomy - Tue, 2017-08-01 11:18
Energy storage projects may bring the cost per kWh of a lithium-ion battery down from $10,000/kWh in the early 1990’s to $100/kWh in 2019, according to a new study.
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Post-Brexit Britain should phase out tariffs on food, says thinktank

The Guardian - Tue, 2017-08-01 09:01

Policy Exchange says EU agricultural policy should be replaced by system that makes imported meat cheaper for consumers

Britain should abandon tariffs on American and Argentinian meat products after Brexit to bring consumer food prices down, according to a leading rightwing thinktank.

Policy Exchange said the UK should phase out tariffs on agricultural products, saying they raise prices and complicate trade deals, although critics say that would pave the way for hormone-treated beef or chlorine-washed chickens, currently banned under EU law, to reach British supermarket shelves.

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