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Male and female set free as part of five-year trial to monitor the impact of England’s only wild population of the mammals

A new pair of beavers has been released into a river in Devon to boost the genetic diversity of England’s only wild population of the mammals.

The male and female were set free on the river Otter as part of a five-year trial monitoring the impact of Eurasian beavers, a species hunted to extinction hundreds of years ago in the UK, on the surrounding landscape, wildlife and economy.

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Malcolm Turnbull’s $150m pledge to boost agriculture in northern Australia comes under fire from conservationists

Malcolm Turnbull has promised to spend $150m on dams in Queensland as part of a plan to double the agricultural output of northern Australia – but which would dump thousands of tonnes of pollution on the Great Barrier Reef, according to conservationists.

The prime minister committed $130m to one dam near Rockhampton and a further $20m to feasibility studies for 14 others across the state.

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Sandy, Bedfordshire Ash dieback threatens a tree that is unwittingly generous at both ends of the season

A line of trees on the green, their fresh bright leaves glazed with sunlight, take from the east and give nothing to the west. Oaks, sycamores and chestnuts bathe their crowns in the mid-morning rays and cast dark shadows on the ground, as wide as the trees are broad, as long as they are tall, with dappled haloes all around. The beeches are worst of all, offering the land beneath no chink in their green armour. No wonder so little grows under the canopy of a beech wood, a crowd of overlapping umbrellas giving shelter, blotting out the light.

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Civil society organizations and Peru government institutions say United Cacao is operating illegally, but the company denies it

Two indigenous Shipibo men from Peru’s Amazon - Sedequías Ancón Chávez and Robert Guimaraes Vasquez - paid a rare visit to the London Stock Exchange (LSE) earlier this month. The reason? To present a letter addressed to Marcus Stuttard, Claire Dorrian and Umerah Akram from the LSE’s Alternative Investment Market (AIM) urging the AIM to investigate, suspend and bar a company called United Cacao Limited SEZC - as well as amend its rules and “exact more active oversight” in general.

“The nature of the crimes which the company stands accused are an important matter for AIM to address,” the letter states. “Allowing companies listed on AIM to raise capital to violate other countries’ national laws jeopardizes the “integrity and reputation” of the market, which is grounds for suspension of a company’s trading, according to AIM Rules.”

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ALZHEIMER'S DEBATE: The protein that has been implicated as the cause of Alzheimer's disease, beta amyloid, fights microbial infection, a new study in animals has found.

Shareholders at Exxon Mobil AGM reject most proposals but voted in favour of a resolution that could see a climate activist elected to the board in the future.

CSIRO has the know-how to develop commercial-scale green energy, with a clear plan and enough money. CSIRO, CC BY

On Friday, the Coalition made a low-key announcement of its new Low Emissions Technology Roadmap. To be developed by the CSIRO, it will aim to “highlight areas of growth in Australia’s clean technology sector”.

Unveiled jointly by the industry and science minister, Christopher Pyne, the environment minister, Greg Hunt, and the energy minister, Josh Frydenberg, the plan asks the CSIRO to identify the most promising ways to reduce emissions and to come up with plans to accelerate the development and commercialisation of Australian technologies such as solar panel components.

With the election campaign in full swing and announcements coming thick and fast, some will obviously get more airtime than others. Still, it was surprising to see this one quietly released on a Friday afternoon, given the seniority of the ministers involved, not to mention the importance of both renewable energy and greenhouse emission reductions as issues in this election.

It’s also not immediately clear what is actually involved in developing a “technology roadmap” like this. It might conceivably follow a model previously developed at the US Sandia National Laboratories, which identified three key elements:

• preliminary activity, which involves defining the project’s precise scope

• developing the roadmap, by deciding which technologies to include and defining specific targets for their development

• follow-up, by working out how the plan is actually going to be implemented.

The announcement in itself has kick-started the first of these three stages. CSIRO has been given the lead for the second element. But it is the third stage – the actual implementation – where roadmaps typically lose their way. Many governments have set roadmaps in the past, only for successive ones to choose different objectives and therefore move down a different path.

The key for any roadmap to deliver its intended outcome is the successful implementation of its proposals. The policy and, crucially, the funding committed to the project will determine whether the ultimate objectives are met.

Pay to play

In the announcement’s press release, Pyne said the roadmap would “achieve a large-scale technology transformation”. But looking at the steps above, this will require policy and investment in those technologies that are to drive the transformation process.

While this announcement supports previous policy pledges, notably the A$1 billion Clean Energy Innovation Fund uneviled two months ago, will this be enough to drive the crucial third stage of the roadmap: developing commercial-scale clean energy generation to the level required to make serious inroads into emissions reduction?

In the past Australia has tended to adopt the cheapest available energy technologies, particularly given that much of the electricity sector is moving from public to private-sector ownership.

Will this change now? Frydenberg’s statement that “the Coalition is committed to a technology-neutral approach to energy policy” would suggest that it may not.

With the minimal growth in electricity demand over recent years, new generation on a large scale will need to be more economical than existing assets, or else policy measures should be put in place to make the new technologies competitive.

Part of the Coalition’s plan, as also stated by Frydenberg, is to ”help identify opportunities for Australian businesses to be involved in the global energy supply chain, with the potential of creating new industries that create new jobs and growth in Australia”. History has shown that while Australia has been a very innovative nation, much of the technology developed here tends to move offshore.

Pyne added that “by 2018 Australian solar technology will be embedded in over 60% of the world’s [photovoltaic] panels”. But how much of this global supply chain has created jobs and growth in Australia?

Hunt also stated that the roadmap will help Australia meet its greenhouse emissions target, which calls for a 26-28% reduction on 2005 levels by 2030. But 2030 is not that far away, and the process of drawing up roadmaps, developing technologies and then commercially deploying them takes time. Support for existing mature technologies, such as solar and wind energy, must be continued in the meantime.

While existing agencies such as the Australian Renewable Energy Agency (ARENA) and the Clean Energy Finance Corporation support these technologies, ongoing funding is a constant subject of debate within the government. These bodies will jointly administer the new Clean Energy Innovation Fund, but if this new roadmap is to be a success, ARENA’s funding must continue beyond its currently planned expiry date of 2022, and the CEFC needs a longer business plan than the current one which runs to 2019.

In the meantime, it pays to think carefully about the initial phase for the roadmap: defining its precise scope. According to the announcement, the areas to be considered include “renewable energy, smart grids, carbon capture and storage, electric vehicles and energy efficiency” – all areas in which CSIRO has existing research programs. As such, it is well placed to understand the challenges, the investment needed, and realistic time frames for implementation. All of these need to be identified and quantified precisely, given that the plan only spans a few years.

Introducing innovative technology into an existing sector, which is already working, will always draw resistance, particularly from the operators (as well as equipment manufacturers, maintenance companies and fuel suppliers) of existing generation assets. But, of course, decisions about electricity generation have much wider effects than just the provision of energy.

The need to reduce emissions affects every aspect of how we will live our lives in the future. No major political party disputes the need to move from existing technology to a clean energy future. But policy, with sufficient financial backing, needs to be put in place now and supported by successive governments to have any chance of hitting the deadlines we face.

Craig Froome does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

The 2015-16 El Niño has likely reached its end. Tropical Pacific Ocean temperatures, trade winds, cloud and pressure patterns have all dropped back to near normal, although clearly the event’s impacts around the globe are still being felt.

Recent changes in Pacific Ocean temperatures have been comparable to the decline seen at the end of the 1998 El Niño, although temperatures remain warmer than at the end of the most recent El Niño in 2010. Models suggest that ocean cooling will continue, with little chance of a return to El Niño levels in the immediate future.

The 2015–16 El Niño will go down as one of the three strongest El Niño events since 1950. Every El Niño is different, but typically the stronger the event, the greater its global impact. The 2015–16 El Niño was no exception, with wide-ranging effects felt around the world.

El Niño also added to the globe’s warming trend, making 2015 the world’s hottest calendar year on record. Early indications are that 2016 could be hotter still.

So as El Niño fades, let’s take stock of its impacts worldwide.

Typical impacts of El Niño across the globe. Australian Bureau of Meteorology Australia

El Niño is often, but not always, associated with drought in Australia. But the drying influence of the 2015-16 El Niño was initially tempered somewhat by very warm temperatures in the Indian Ocean. From April to August, above-average rainfall fell over parts of inland Western Australia, New South Wales and eastern Victoria.

But by spring, the Indian Ocean was helping El Niño, resulting in Australia’s third-driest spring on record, limiting growth at the end of the cropping season. A record early heatwave in October further reduced crop production in the Murray–Darling Basin.

However, the lack of heavy rains in the north and west meant reduced downtime for mining.

The northern wet season produced a record-low three tropical cyclones in the Australian region. The previous record was five, which happened in 1987-88 and again in 2006-07 – both El Niño years.

Fewer clouds and less tropical rain contributed to the most severe coral bleaching event on record for the Great Barrier Reef.

The combination of heat and low rainfall brought a very early start to the fire season, with more than 70 fires burning in Victoria and around 55 fires in Tasmania during October. Dry conditions in Tasmania also resulted in hundreds of fires being started by dry lightning in mid-January 2016. The fires damaged large areas of the Tasmanian Wilderness World Heritage Area, including areas of rainforest and bogs, which may not have seen fire for centuries.

The Pacific region

In Papua New Guinea, drought and frost led to crop failures and food shortages. Staple sweet potato crops in the highlands were severely damaged by August frosts – the result of El Niño reducing night-time cloud cover – which also destroyed wild plants that are usually eaten as a backup source of food.

Vanuatu, Fiji, the Solomon Islands, Samoa and Tonga experienced worsening drought. Islands closer to the Equator such as Kiribati and Tuvalu had intense rain causing flooding, as well as higher sea levels due to warmer waters and weaker trade winds.

Asia

In the Philippines, drought was declared in 85% of provinces. Indonesia experienced its worst drought in 18 years. Forest fires caused poor air quality over vast neighbouring areas including Singapore, Malaysia, southern Thailand and the southern Philippines.

In the Mekong Basin, delayed monsoon rains reduced rice production, with significant reductions in Vietnam. In Thailand, severe water shortages led to water rationing and delayed rice planting. The Thai government lowered its forecast for rice exports by two million tonnes. This led to some African countries increasing their imports, fearing a price rise.

Palm oil prices rose as supplies became limited due to drought in Malaysia and Indonesia. In April 2016, a heatwave set national temperature records for Thailand, Laos and Cambodia.

Northern parts of China experienced drought in 2015. Heavy rainfall in southern China persisted through the second half of 2015, with flooding and landslides recorded along the Yangtze River Valley. China’s December-to-February rainfall was approximately 50% above normal. In May 2016, heavy rain caused flooding and landslides in China’s Guangdong province.

In India, below-average monsoon rains in June to September led to reduced rice, corn, cotton and sugar output in 2015. Below-average rainfall between October and December also affected India’s wheat harvest. Major water shortages emerged in some areas, including Mumbai – the result of two years of failed rains.

Indian Premier League cricket matches were relocated from Mumbai, Pune and Nagpur due to water restrictions. Record heat affected the north and west of the country in May, setting a new national record of 51℃ in Phalodi.

Conversely, some southern parts of India had exceptionally wet conditions, with record-breaking rains and widespread flooding in Chennai in November and December. The city received over 300mm of rainfall on December 1, 2015; the wettest day in more than a century.

South and Central America

Peru experienced widespread flooding and mudslides in early 2016, with heavy rain leaving more than 5,000 people homeless. In Ecuador, flooding and landslides damaged properties and affected shrimp production.

More than 150,000 people were evacuated from flooded areas in Paraguay, Uruguay, Brazil, and Argentina in December 2015. Some experts have linked El Niño flooding to outbreaks of mosquito-borne diseases such as Zika virus.

In January 2016, Argentina experienced its worst locust plague since 1954, following heavy rains and warm temperatures. Heavy rains returned to Argentina and Paraguay in April 2016, causing large agricultural losses.

In contrast, Colombia experienced drought and forest fires, which caused severe damage to crops and pushed up food prices, leading to malnutrition in some areas. In November 2015, the United Nations warned that 2.3 million people would need food aid in Central America.

The Caribbean also experienced drought; Cuba had its most severe dry season in 115 years; Barbados, Dominica, the Virgin Islands, Puerto Rico, Antigua, Barbuda and Saint Lucia experienced water shortages, with the latter declaring a national emergency. The Dominican Republic experienced serious agricultural losses.

Brazil had a particularly high number of forest fires during 2015, exacerbated by ongoing drought conditions in the Amazon region. Drought in Brazil and Colombia (and Indonesia) meant coffee prices soared as dry conditions affected all the major coffee-producing countries.

In contrast, excess rain in northeast Brazil flooded crops, leading to rises in the sugar price worldwide.

North America

In California, many hoped that El Niño would bring relief from five years of drought. But despite some regions getting heavy rain more typical of El Niño, leading to mudslides, El Niño failed to end the long-term dry.

In the southeast and south-central United States, rainfall was above normal. Major flooding occurred along the Mississippi River. Missouri received three times its normal rainfall during November and December 2015.

Warmer-than-average sea surface temperatures offshore meant warm water species such as sea snakes, red tuna crabs and hammerhead sharks were found on Californian beaches.

Africa

Drought meant that South African food production was around six million tonnes below normal levels — the lowest since 1995.

In Zimbabwe, Malawi and Mozambique, maize prices were at least 50% higher than usual, with drought unlikely to break until rains in summer 2016–17. In the driest areas of Zimbabwe, more than 75% of crops were lost. In May 2016, Zimbabwean national parks put wildlife up for sale in a bid to save animals from drought.

The cost of chocolate hit a four-year high as a result of drought and lost production in the world’s major cocoa producer, Ivory Coast.

Drought also affected Ethiopia, Somalia, Swaziland, Zambia and parts of Madagascar, with more than 10 million Ethiopians in need of food aid.

In December 2015, Rift Valley fever was reported in East Africa. The disease is associated with heavy rainfall providing a fertile breeding ground for the mosquitoes that carry the virus.

In Tanzania, heavy rain destroyed crops and food reserves, while in Kenya heavy rains aggravated cholera outbreaks. In May 2016, landslides in Rwanda cost many lives and heavy rains damaged infrastructure and hundreds of homes.

For information on the current and forecast state of ENSO, keep an eye on the Bureau’s ENSO Wrap-Up.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond the academic appointment above.

The decision of North Yorkshire county council to allow fracking (Campaigners vow to fight fracking permit, 25 May) was based on limited information. I enquired some weeks ago whether there was or would be a social cost-benefit analysis (SCBA), and was told in essence this was too difficult and not required for a planning decision. An SCBA would examine not only the economic viability of a scheme but also the social costs to the community of pollution and damage to the local amenities. One clear social cost will be the damage and repair costs caused by thousands of heavy lorry movements on rural roads. These costs would be borne by the taxpayers of North Yorkshire, as now sanctified by the council, and not the drillers and government so enthusiastic for the fracking.
John Launder
Skipton, North Yorkshire

• I sat through the two-day planning meeting to decide the fracking application at KM8, Kirby Misperton. More than 80 most persuasive and eloquent objections were made by two professors, a former UN climate change adviser, medical professionals, planning consultants, and businesspeople, along with well-informed and passionate members of the community. There were more than 4,000 letters of objection and only 36 in support. Every argument was totally dismissed by the applicant and planning officer as if it were complete nonsense. The end debate, which lasted no more than 20 minutes, made it clear that some but not all members had not been receptive to opposing views and revealed through their comments they had only a basic grasp of the risk associated with fracking. The decision could obviously have been made without any meeting or representations. In all a travesty of democracy and very disrespectful to the people of North Yorkshire.
Michael Tanner
Nawton, North Yorkshire

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Researchers investigating a cave in France have identified mysterious stone rings that were probably built by Neanderthals.

The contract is signed that will lead to the construction of one of this century's key astronomical facilities - the European Extremely Large Telescope.

Activists consider ‘more confrontational’ action to prevent energy firms drilling for shale gas in Yorkshire and Lancashire

Anti-fracking campaigners are threatening to set up protest camps in Yorkshire and Lancashire to prevent energy companies drilling for shale gas. Fracking firm Third Energy was given permission on Monday to carry out test drilling at a site in Kirby Misperton in Rydale, North Yorkshire, even after 99% of locals voiced their opposition to the application.

The decision prompted fears around the country that other fracking sites would be given the green light. Those fears are particularly acute in Lancashire, seen as the “next frontier” in the fight against the extreme form of energy extraction. Ian Roberts, the chair of Residents Action on Fylde Fracking, which opposes fracking on the Fylde coast in Lancashire, said his group was ready to start “more confrontational” action.

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A possible grizzly-polar bear hybrid has been shot by a hunter in northern Canada.

Officials reject applications from 61 companies for new palm oil operations in a crackdown on the industry blamed for fuelling haze-belching forest fires

Indonesia has rejected applications from scores of companies for new palm oil operations, an official said on Wednesday, as it cracks down on an industry whose expansion has been blamed for fuelling haze-belching forest fires.

Almost 1m hectares (2.5m acres) of land were spared from conversion to palm oil plantations due to the decision, said San Afri Awang, a senior official from the environment and forestry ministry.

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The World Wildlife Foundation surveyed 2000 UK adults about their knowledge of endangered species. Roughly a third didn’t know giant pandas and snow leopards are under threat, while a fifth thought cows and grey squirrels are. One in four thought the dodo and brachiosaurus still exist!

• Do you know your wild species at risk? – in pictures

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Success is declared by the team drilling into the Chicxulub Crater, the deep scar made in the Earth's surface by the asteroid that hastened the end of the dinosaurs.

Campaigners fear more sites will get green light after decision to let Third Energy carry out test drilling in Kirby Misperton

Anti-fracking campaigners are threatening to set up protest camps in Yorkshire and Lancashire to prevent energy companies drilling for shale gas.

The fracking firm Third Energy was given permission on Monday to carry out test drilling at a site in Kirby Misperton in Ryedale, North Yorkshire, despite 99% of locals opposing its application.

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People could be deterred from eating meat by increasing its price further up the supply chain, stemming rise in consumption and environmental damage

Governments should tax meat production in order to stem the global rise in consumption and the environmental damage that goes with it, according to a UN expert.

The world faces serious environmental problems if emerging economies such as China emulate Americans and Europeans in the amount of meat they eat, Prof Maarten Hajer, the lead author of a report into the impact of food production and the environment, told the UN environment assembly in Nairobi.

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Three climbers have died on Mount Everest in the past week, all succumbing to altitude sickness after reaching the summit. The increasing number of deaths on the world’s tallest mountain is raising fresh fears about overcrowding and the ethics of commercial mountaineering on Everest

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More than 8 million people were employed worldwide in the renewable energy sector last year as rapidly falling costs drove growth in the industry

A boom in solar and wind power jobs in the US led the way to a global increase in renewable energy employment to more than 8 million people in 2015, according to a report from the International Renewable Energy Agency (Irena).

More than 769,000 people were employed in renewable energy in the US in 2015, dwarfing the 187,000 employed in the oil and gas sector and the 68,000 in coal mining. The gap is set to grow further, with jobs in solar and wind growing by more than 20% in 2015, while oil and gas jobs fell by 18% as the fossil fuel industry struggled with low prices.

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