The World Economic Forum’s annual gathering of the world’s political and business leaders, which usually takes place in Davos, is a virtual event this year due to the pandemic. The FT brings you highlights from day three.

Russian president Vladimir Putin has warned that the world risks a conflict of “all against all” if global development concerns are not addressed.

Mr Putin hailed his agreement with US president Joe Biden, announced on Tuesday, to extend the New Start treaty capping the number of nuclear warheads held by both countries, as “a step in the right direction”, but said “controversies are spiralling”.

“There is a chance to face a real setback in global development, which is fraught with a fight of all against all and attempts to resolve looming controversies through a search for internal and external enemies,” Mr Putin said in a video conference speech to attendees. “The situation might develop unpredictably and uncontrollably. It definitely will if nothing is done to prevent this.

“Of course, I hope that such a hot global conflict is impossible in principle now,” he added. “I really do hope so. It would mean the end to our civilisation.”

The theme of global destruction and a potential third world war has become a common one in Mr Putin’s foreign policy speeches in recent years. His Davos speech did not include references to new weapons being developed by Russia, such as a hypersonic nuclear missile and a long-range nuclear-armed torpedo, which he often boasts of when speaking to a domestic audience.

Mr Putin also questioned the power of technology giants, making a pointed reference to the role played by social media companies in the recent US election and its aftermath.

“These are no longer just economic giants. in some areas, they are already de facto competing with the state,” Mr Putin said. “Society has a question to ask what extent such a business monopoly corresponds to the public interest?”

South Korean president Moon Jae-in also touched on global inequality during his speech earlier in the day. He said inequality was worsening not only within countries but also between nations, as a result of the pandemic.

But the leader of Asia’s fourth-largest economy also struck a more positive note, proposing that his country’s plans to encourage businesses prospering during the pandemic to share profits with those less fortunate could be a model for the world to follow.

“My administration and the legislature are also discussing a profit-sharing system in which the government provides strong incentives to companies that have prospered during the Covid-19 pandemic to share their profits with their hardest hit peers,” said Mr Moon. “More wisdom will be needed to work out the details, but if these initiatives can be realised they can become a benchmark for inclusive policies to be used in overcoming future pandemics together.”

While the coronavirus crisis has been the focus of much of the event so far, Wednesday’s discussions at the WEF shifted their focus to climate change.

Mairead McGuinness, European commissioner for financial services, said that asset managers and companies had a duty of care to help reduce carbon emissions and urged them to think beyond gaining a financial return.

“Given that we’re all in a world where we’re stuck where we are, we don’t mix with people because a pandemic we never prepared for has hit us — this is a real wake-up call for the world about what can happen,” she said. “It’s not decades away, it’s very close.”

Bill Winters, chief executive of Standard Chartered, said that although many businesses had communicated net-zero emission pledges, few of them had outlined how they would implement or measure them.

“Ultimately there is going to have to be some facility for people to get to net zero by transferring money to other people who are able to actually remove carbon from the environment, which may not be the businesses that we run,” he said.