Is global warming just hot air? World temperatures have risen by just 0.29C in the last two decades

Daily Mail "World temperatures have remained almost stagnant in the last two decades, new figures have revealed. Temperatures across the globe rose by around a third of a degree last year from the average of 14 degrees Celsius recorded between 1961 and 1990. ....The findings come as consumers feel the full force of a raft of environment policies introduced by the coalition and the previous Labour government in the name of climate change. By 2030, ‘green’ policy burdens could cost families an extra £267 a year and have already raised current energy bills by £78 annually. The figures on global temperatures were published by Environment Minister Gregory Barker in a parliamentary answer to Tory MP Anne Main. Mrs Main said it raised questions about whether vulnerable people should be made to make the choice between heating and eating. ....The figures were unveiled as an environmental guru and maverick scientist admitted that he may have been ‘alarmist’ about climate change. James Lovelock, who warned that billions would die before the end of this century and only the Arctic would be fit for human habitation, said: ‘The problem is we don’t know what the climate is doing. We thought we knew 20 years ago. That led to some alarmist books – mine included – because it looked clear-cut, but it hasn’t happened.’