Where is there source on this?

Last week Met said this

http://www.metoffice.gov.uk/...012/solar-output-research

Decline in solar output unlikely to offset global warming

23 January 2012 - New research has found that solar output is likely to reduce over the next 90 years but that will not substantially delay expected increases in global temperatures caused by greenhouse gases.

And it continues... but basically global warming is real and the Daily Mail is rubbish...