FORMER US Presidential candidate Al Gore is to visit Gibraltar as part of the Rock’s efforts to become ‘a major environmental hub’.

Gore – who also served as Vice President under Bill Clinton – will deliver a speech on economic strategy at a major environmental forum to be held on October 21.

Joining him will be Juan Verde, the international co-director of Barack Obama’s re-election campaign.

Gore’s film An Inconvenient Truth shocked audiences worldwide into taking the issue of global warming seriously.