Millions of people around the world are willing to make personal sacrifices, including paying higher bills, to help redress climate change, a global survey said yesterday. The survey found 83 percent of those questioned believed lifestyle changes would be necessary to cut emissions of climate warming carbon gases. The survey, conducted by two polling organisations for the BBC World Service, covered 22,000 people in 21 countries. In 14 of the 21 countries from Canada to Australia, 61 percent overall said it would be necessary to increase energy costs to encourage conservation and reduce carbon emissions. ?People around the world recognise that climate change requires that people change their behaviour,? said Steven Kull, director of the Program on International Policy Attitudes which conducted the poll with GlobeScan. ?And that to provide incentives for those changes there will need to be an increase in the cost of energy that contributes to climate change,? he added. Scientists say carbon emissions from burning fossil fuels for power and transport will push global average temperatures up by between 1.8 and 4.0 degrees Celsius (3.2 and 7.2 degrees Fahrenheit) this century, causing floods, famines and violent storms putting millions at risk.