These ensure a consistent approach in all of our Group of companies to these worldwide responsibilities. According to the scientists of the Intergovernmental Panel on Climate Change, the balance of evidence suggests that there is a discernible human influence on global climate. In spite of the considerable scientific uncertainties which remain about the nature, process and impact of climate change, Shell believes there is sufficient evidence to support prudent precautionary action. Prudence does not mean delay but equally it does not mean precipitous action. Taking measures so hasty that they threaten the stability of the energy industry, and therefore its vital, current and ongoing contribution to the economic development of societies, could be as damaging as doing nothing.
Practicality is the watchword.
Fossil fuels currently supply about 85 per cent of global primary energy needs, and the continued use of oil, gas and coal is inevitable for the foreseeable future. More reserves will have to be found to sustain population growth and improve living standards over the next few decades, particularly in developing countries. Although there are currently no generally available alternatives to fossil fuels at acceptable cost, we do expect renewable sources to become cheaper and more widely available during the next half century. Looking ahead Our vision for the future includes radical changes in energy supply and consumption. SIR will devote most of its efforts to biomass power generation, solar electricity and forestry - while keeping an open mind on other renewable energy possibilities such as wind power.