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OUT: Kurtley Beale (Waratahs), Tom Bristow (released), Nick De Luca (retired), Carlo Festuccia (retired), Frank Halai (Pau), Alapati Leiua (Bristol Rugby), Phil Swainston (Harlequins).

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Atlas Copco Secoroc is proud to announce the limited release of Powerbit T45 in the USA, Norway, Sweden and Turkey.

Best signing: Liam Williams – star of the Lions tour, he set up THAT try in the first Test, and is now ready to rock the Premiership. Brilliant at wing or fullback he will frighten defences all year. The best signing of the summer from any club, on paper.

Sportsmail’s verdict: 5th – the Tigers have got to miss out on the top four one year, and with half of their stellar backline off on international duty for large parts of the season, this could be another year of transition. Cue a knowing shrug from the Edinburgh director of rugby if they do not make the playoffs…

There happens to be a name for things that can do this kind of extraction work: negative-emissions technologies, or NETs. Some NETs, like trees and plants, predate us and probably don’t deserve the label. Through photosynthesis, our forests take extraordinary amounts of carbon dioxide from the atmosphere, and if we were to magnify efforts to reforest clear-cut areas — or plant new groves, a process known as afforestation — we could absorb billions more metric tons of carbon in future years. What’s more, we could grow crops specifically to absorb CO₂ and then burn them for power generation, with the intention of capturing the power-plant emissions and pumping them underground, a process known as bioenergy with carbon capture and storage, or BECCS. Other negative-emissions technologies include manipulating farmland soil or coastal wetlands so they will trap more atmospheric carbon and grinding up mineral formations so they will absorb CO₂ more readily, a process known as “enhanced weathering.”

The Institute of Seismology at the University of Helsinki is responsible for regulatory control of the project and will monitor progress using its own instruments. Surface accelerometers installed in the immediate vicinity will also measure the impact of the micro-vibrations at ground level. The ground level effects of stimulation in bedrock at depths of several kilometres are nevertheless minimal or non-existent. For example, the blasting stages of metro tunnelling cause much larger vibrations.

c clair que si y’avait pas cette conso de malade (200-250w au lieu de meme pas 100), le plasma serait la panacée car niveau image c de la balle !

“In daily drilling production, the mission of the drill is to punch holes. It’s that simple,” says Bill Hissem, a 40-year veteran of the industry and senior mining engineer at Sandvik Mining and Rock Technology. The Colorado School of Mines graduate has consulted and worked in every state, as well as in Canada, and on several other continents, including South America, Western Europe, and Australia.

"The problem was so poignant to me," Renouard recalled. "There we were, in 2010, and we’re still living like this."

Once destined for Mars, a prototype drill has a new mission: To bore into rocks buried deep beneath the ice in Antarctica.

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.