Albert Bourla, Chief Executive Officer of US-based pharmaceutical giant Pfizer, encountered a series of tough questions about the efficacy of its Covid vaccine on the sidelines of the ongoing World Economic Forum, but he repeatedly ignored them.

People at Davos have a tendency to overstate the importance of the gathering, and they have perhaps been spoiled by the obsession Biden's predecessor, Donald Trump, showed with the place.

Despite the urgent need for climate finance, numerous barriers have impeded the flow of private capital to decarbonisation projects around the world and especially in the Global South, experts and business leaders noted.