The Reform leader has barely spoken about his constituency, a deprived area at high risk from the effects of climate change.

Decision a blow to campaigners, who say the ads gave Saudi Aramco unearned climate credibility.

UK’s first parliamentary debate on the issue drew comparisons both with tobacco industry tactics and the industry's now widely accepted ad ban.

Labour's Jacob Collier warns parliamentary debate of "coordinated strategy" by oil companies to delay climate action.