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by Rebecca Nesbit Invasive species can have a negative effect on our native species, competing with them for food, eating them, and bringing diseases. Some well known examples in the UK are the grey squirrel, rhododendrons, the harlequin ladybird and Japanese knotweed. Global transport and a changing climate mean the risk of [...] by Rebecca Nesbit When a plant photosynthesises it takes carbon dioxide from the air and, combining it with water, produces sugar and oxygen. The sugars produced are used as energy and to make new materials as the plant grows. In this way carbon from the air is converted into carbon stored in [...] by Rebecca Nesbit The vast quantities of CO2 that are being released into the atmosphere from cutting down forests and from my exhaust pipe will do more than just absorb the sun’s energy and increase global temperatures. Carbon dioxide is a raw material for photosynthesis, so this extra CO2 in the atmosphere [...] by Rebecca Nesbit The rapid growth in biofuel production has left many unanswered questions about the true effect of biofuels on climate. On one hand, we avoid the greenhouse gas emissions associated with burning fossil fuels. On the other hand, if natural ecosystems such as forests are cleared to make way for [...] by Rebecca Nesbit Climate change is likely to increase the frequency and severity of storms, and alter the paths they take. Severe storms can form storm surges, suddenly increasing water levels and this potentially causes problems for coastlines and flood defences. This sudden increase in water levels is compounded by the fact [...] by Rebecca Nesbit When I was in The Gambia recently my reading material included a review of the world’s fisheries – how are fish going to react to climate change? Which parts of the world will be most affected? How are we going to react to the fishes’ reaction to climate change? So [...] by Rebecca Nesbit Every time I fill up my car with petrol I feel slightly queasy, so biodiesel could be a very welcome alternative.
The EU has set a target of 10% renewable energy in transport by 2020, but lots of methods of producing biodiesel don’t offer the emissions reductions that you’d expect, [...] |
Rebecca Nesbit
Emma Wright |
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