Negligence – Causation. The Court of Appeal, Civil Division, dismissed an appeal against an award of damages in favour of the claimant linked to his exposure to asbestos dust while having worked for the defendant. While only 2.3% of his total exposure was attributable to the defendant, its concession that that had been material was critical and the judge had been right to find that the claimant was worse of as a result of the 2.3% exposure for which the defendant had been responsible.