Microsoft to go carbon neutral
Tech giant commits to making data centres, air travel and offices meet target by July, and to introducing internal carbon market
Vauxhall predicts Ampera will boost electric car sales
New model arrives in showrooms with the intention of ending fears over 'range anxiety' due to limited battery life
Protesting against mobiles is damaging the environmental movement
George Monbiot: As a new study shows that mobile phone usage is not a health risk, campaigners should concentrate on other targets
Walden Woods video game will recreate the world of Thoreau
Author's notes about Massachusetts landscape immortalised in his writings will underpin development of grant-funded game
Google pair back plan to lasso asteroids and mine them for precious metals
Seattle-based Planetary Resources company aims to turn science fiction into fact using unmanned rockets and moon base
Apple defends green credentials of cloud computing services
Greenpeace report named Apple among worst offenders for using highly polluting coal to power their data centres
Edible packaging: fancy a wrap?
Packaging you can eat is said to be the next big thing. Question is, after storage and handling, would you want to?
US draws up plans for nuclear drones
Technology is designed to increase flying time 'from days to months', along with power available for weapons systems
Synthetic biology: the best hope for mankind’s future?
Johnjoe McFadden: If GM is agriculture's Ford Cortina, synthetic biology could give us Ferrari crops that feed the world without harming the planet
James Cameron to release a 3D film of pioneering deep-sea dive
The Titanic director had to develop a special camera to withstand the 11km descent into the Pacific Ocean, writes Andrew Pulver
Nasa’s animations: from the perpetual oceans to the surface of the sun and moon
Nasa's animators at the Goddard Space centre produce beautiful data-based visualisations that tell you something about the universe
Budget 2012: 50p tax rate scrapped and allowance raised
George Osborne has announced a £1,100 increase in the personal tax allowance, and cut the top rate of tax to 45p
From head to footage: the best bike-helmet cameras
Helmet-mounted video cameras are a great way to film your cycle commutes and fun rides. Laura Laker reviews three popular choices
iPad recycling ‘is multibillion-pound opportunity for UK firms’
Government announces support for recycling businesses as billions of pounds worth of rare metals go to waste in UK
Should the UK now embrace GM food?
Leo Hickman: A survey shows attitudes in the UK towards genetically modified food has softened slightly. But would people buy it? Leo Hickman, with your help, investigates
New device heralds potential to turn sewage plants into power stations
Breakthrough that combines fuel cell with other technologies could provide power for entire water grids, scientists say
Greenwash and hamming it up – Mazda makes a mess of CX-5 advert
Ed Gillespie: Mazda adopts a Dr Seuss story, the Lorax, to sell its new compact SUV, but there's no disguising how ordinary the car is
Has the wind revolution stalled in the UK?
Britain should be a world leader in wind energy but subsidy changes and a hesitant public are scaring investors
Windfarms axed as UK loses its taste for turbines
In the first of a three-part series, we look at the political shifts causing investors to doubt Britain's commitment to wind
Wind energy companies fear government’s commitment is cooling
Wind power firms express concern over future policy and reveal how investment in the UK's energy infrastructure is on hold
Amazon removes whale meat products from Japanese site
Public outcry forces online retailer to ditch products including whale bacon, whale jerky and canned whale meat
‘Virtual diving’ becomes a reality as 360-degree panoramas of Great Barrier Reef go online
Marine conservation project hopes to involve global web audience in armchair ecology and exploration
Antarctic lake race sees scientists dash for life’s secrets in subglacial world
Lake Vostok reached after drilling 2.3 miles down, says Russian team as they and rivals seek organisms in long-lost waters
David Bowman: elephants could save Australia’s landscape
Introducing large herbivores to Australia could stop the spread of gamba grass, blamed for many of the countries bush fires, says David Bowman
Guardian Viral Video Chart: Collapsing cooling towers, Will Ferrell, Old Spice
Watch power stations toppling and the Elf star introduce two NBA teams in our rundown of the top online clips. By Josh Halliday
Google tops Greenpeace IT ranking
BusinessGreen: Apple excluded from Cool IT Leaderboard over failure 'to pursue market opportunities to drive IT energy solutions'
Bill Gates backs climate scientists lobbying for large-scale geoengineering
Other wealthy individuals have also funded a series of reports into the future use of technologies to geoengineer the climate
London slow to become the ‘electric car capital of Europe’
Only 588 electric cars were registered since Boris Johnson's announcement he would ensure 100,000 electric vehicles were in the city
Amazon rainforest mapped in unprecedented detail
Scientists record Amazon's structure and biodiversity by bouncing laser beams off forest 400,000 times per second
Plans for Sellafield plutonium reactor rejected
Nuclear Decommissioning Authority sees technology as immature and commercially unproven, internal emails reveal
‘Bicycle pump’ to turn wave power into clean energy
Searaser device that pumps saltwater to an onshore generator has been tested in prototype and praised by ministers
How an electric car scheme plans to drive down social divisions
A public mobility project with a social purpose – Britain should sign up now, says Randeep Ramesh