New Scientist: The climate data wars have taken a new turn. A leading British university has been told it must release data on tree rings dating back more than 7000 years to an amateur climate analyst and climate sceptic. The ruling, which could have important repercussions for environmental research in the UK, comes from the government’s deputy information commissioner Graham Smith. In January he caused consternation at the height of the “climategate” affair by criticising the way that the …