Tim Yeo was the Treasurer of the All-Party Parliamentary Climate Change Group whose purpose is "To raise awareness of the threat of climate change and to promote policies to counter that threat", and the Chairman of the Energy and Climate Change Select Committee.
In May 2013 the Daily Telegraph reported that Mr Yeo accepted the earth's temperature was increasing but had said "natural phases" may be to blame. Mr Yeo issued a statement the same day stating that he had not changed his views and saying "I accept the overwhelming scientific evidence that human activities are having a major impact on the climate – there is an overwhelming probability that the impact of greenhouse gas emissions from human actions are contributing to climate change". A piece of contextual information present in the original Telegraph article, but not mentioned until the tenth paragraph, is that Mr Yeo "was speaking to an audience of energy industry representatives and diplomats at the Westminster Russia Forum" and he also touched on the subject of a third runway at Heathrow, so perhaps he was "bullshitting/spinning for his audience".
In February 2015 Tim Yeo voted in favour of allowing mitochondrial donation, which would allow women who carried mitochondrial diseases to give birth to children who would not inherit the disease. An October 2014 briefing report by the Human Fertilisation and Embryology Authority (HFEA), which had been investigating the issue for three years, stated that there was no evidence to show that mitochondrial donation was unsafe. However, some religious groups had said that such procedures should not be allowed. After clearing both Houses mitochondrial donation is now legal, regulated by the HFEA.