Christopher Booker summarises some recent questions in the global warming debate, some already highlighted here.
- Al Gore claimed to a US Senate committee in March that "droughts are becoming longer and more intense". But serious droughts have in fact become rarer than they were a century ago.
- The hottest year of the 20th century was not 1998, as generally accepted, but 1934. Of the 10 hottest years since 1880, four were in the 1930s, only three in the past decade.
- Global temperatures are flattening out at about 0.2 degrees below their 1998 level. This summer's figures have been lower than they were in 1983, despite a continuing rise in CO2.
The Taxpayers Alliance say "green taxes" now cost us £21.9bn a year, equivalent to nearly £1,000 for every home in the country. Meanwhile, China is building a new coal-fired power station every four days.