The US government has given he go-ahead for a test plot of genetically modified (GM) eucalyptus trees in Alabama. For the first time, these trees will be allowed to flower and set seed, opening the door to potential widespread contamination of the American South.
Every year, each square metre of the UK receives between 900 and 1200 kWh of solar radiation. Capturing just some of this energy could make a significant contribution to fulfilling our energy requirements.
The UK has been described as the ‘Saudi Arabia’ of wind, with some 50 TWh of onshore and at least 450 TWh of offshore power available every year, well in excess of our current electricity demand.
There is much talk of the possibility of a future ‘hydrogen economy’, which will power all our vehicles and homes. It is important to remember that hydrogen is not an energy source; it is an energy carrier. To obtain hydrogen it must be split from either natural gas or water molecules. The former, most widely used, method not only requires energy but also gives off carbon dioxide (CO2) in the process. Hydrogen produced in this way requires more energy to make than will eventually be returned when it is used. It makes more sense from a climate perspective to burn the natural gas itself than to convert and re-convert it to hydrogen in this way.
Even among green campaigners, nuclear energy is quietly gaining ground as a potential solution to the impending energy crisis. However several issues – particularly those of raw materials, cost and waste – remain unaddressed within the mainstream of opinion.
Each year, UK livestock produce some 60 million tonnes of collectable faeces. If left to run into water-courses or even spread on fields, this waste can lead to the same problems associated with excessive fertiliser use – algal blooms and aquatic life starved of oxygen.
According to the Energy Saving Trust, the average UK household spends more than £870 per year on fuel and power, and produces around six tonnes of CO². £300 of this cost (and around two tonnes of CO²) could be saved by being more energy efficient.
Clean Coal Carbon capture and storage (CCS) is the technology of stripping carbon dioxide from the exhaust gases of fossil fuels and then burying it as a liquid underground.
Deep in rural Sussex at Wakehurst Place, in a large nature reserve of 500 acres of National Trust woodlands and lakes, stands the Kew Gardens Biological Research Centre. Sixty feet beneath is a nuclear bunker. This is the British National Doomsday vault, home to the UK’s Millennium Seed Bank (MSB). If apocalyptic disaster strikes, this bunker will hold key bio-scientists and all remaining plant life.
A ruling in the US courts at a meeting which the Environment Agency claims never took place has dashed all hopes of making Monsanto pay up for polluting Brofiscin quarry in Wales. Is the Agency guilty of obstructing the course of justice? Jon Hughes investigates
A ruling in the US courts at a meeting which the Environment Agency claims never took place has dashed all hopes of making Monsanto pay up for polluting Brofiscin quarry in Wales. Is the Agency guilty of obstructing the course of justice? Jon Hughes investigates
The nuclear industry continues to show failings in reliability by shutting down nearly half of the UK’s reactor fleet for maintenance this week, even as the Government finalises its consultation on a new generation of British nuclear power.
