Generation Investment Management, the sustainable asset manager founded by ex-US vice-president Al Gore and a former head of Goldman Sachs's funds arm, almost doubled its profits last year following a surge in performance fees.

London-based Generation recorded a profit of £101.3 million during 2015, according to its latest accounts filed at Companies House in September. The profit - which can be shared among members - was markedly up on the £57.5 million posted the previous year.