The Liberal Democrats believe we should have a real vote on Europe - whether we should be in Europe or out.

We have been blocked from having a vote on this in Parliament, and all the Conservatives are proposing is a limited referendum on the Lisbon Treaty.

However, the public back our position by a margin of 2:1: twice as many people think a referdum should be on whether we stay in Europe or not rather than only on the Lisbon Treaty.

We want that real referendum because if Britain is to stride forward confidently into the 21st century and tackle global issues like climate change and terrorism, we need to decide once and for all whether our future lies within the European Union, or outside it.

In that referendum campaign we will argue long and hard for Britain's vital place in the EU.

Please support our challenge to the Government and the Conservative Party to give the public a real choice on Europe by signing our petition.