Clean energy

Climate change, we hear it in the news almost every day. The impacts of global heating will not just be felt later this century, but are already being felt, for example:

1. The proportion of very dry land across the world has doubled since the 1970s. There are already signs that increasing drought is affecting agricultural yields and encouraging forest fires.
2. Global sea levels have already risen by 10 centimeters during the last 50 years, as land ice has melted and oceans have warmed; there are signs that the rate of increase is accelerating.
3. The increasing acidity of the oceans caused by increasing atmospheric CO 2 concentrations is already having a negative impact on the many ocean animals that build shells of calcium carbonate - including many tropical reef building and corals - as well as species higher up the food chain which depend on them for survival.
4. Sea ice is already reducing in extent and coverage. Arctic summer sea ice is disappearing at an alarming rate with the lowest and second lowest extents on record occurring in 2007 and 2008, respectively. Within a few decades, large parts of the Arctic Ocean are expected to have no late summer sea-ice cover