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       Italian Foreign Minister Luigi Di Maio sits down to begin a G20 ministers meeting in Matera, Italy, on June 29, 2021.

       POOL/The Associated Press

       With the pandemic providing painful lessons on how interconnected the world is, ministers from nations accounting for more than half the world’s population were meeting in Italy on Tuesday to explore how to better co-operate, including on vaccines and climate change efforts.

       Italian Foreign Minister Luigi Di Maio cited both as areas where it’s imperative that countries pull together. He opened the appointment, attended by foreign ministers and development ministers from the Group of 20. Together the G20 nations account for some 80 per cent of the world’s GDP.

       Some ministers were participating remotely because of COVID-19 travel concerns, including from China, Russia and Brazil.

       “In an interconnected world, multilateralism and international co-operation are the only effective instruments in facing global challenges,” Di Maio said. “We have had an example of that with the vaccines.”

       U.S. Secretary of State Antony Blinken built on Di Maio’s premise in his opening remarks.

       “To bring the pandemic to an end, we must get more vaccine to more places,” Blinken said. “Multilateral co-operation will be key to stop this global health crisis.”

       Blinken took the occasion to tout U.S. contributions to COVAX, the UN-backed program to get vaccines to needy nations, which include around 500 million Pfizer doses and 80 million other doses.

       While some wealthier countries are struggling to convince ever more segments of their populations to be vaccinated against the illness that has claimed nearly 4 million lives worldwide in confirmed death tallies, poorer nations, especially in Africa, are desperate to receive vaccine supplies, with only a tiny fraction of their people having access so far to the injections.

       Scientists and many political leaders have warned that the pandemic can’t be effectively brought under control unless all nations have substantial vaccination rates.

       Upon arrival for the talks, Germany’s foreign minister signalled urgency on the vaccine front. “I think the main thing now is to quickly create alternatives so that countries, regions like Africa, for example, are able to be supplied with more vaccine more quickly,” Minister Heiko Maas told AP.

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       “Whether the formal discussion about lifting patents or introducing waivers helps with that – I think that will be a very formal and very lengthy discussion and decision-making. That’s why I think the focus now definitely has to be on providing the supply chains, but also the production facilities, with new possibilities,” Maas said. “At the moment, only quick solutions will help.

       One of the sessions on Tuesday was focusing on Africa.

       For Di Maio, “2021 is a crucial year to relaunch international co-operation,” on climate change. “We have occasions we cannot lose to implement the Paris accords.”

       The decision earlier this year by U.S. President Joe Biden’s administration to return to the climate change fight and help lead it has heartened advocates pressing for urgent tackling of climate change threats. Last year, under the then Trump administration, the United States became the only country to leave the 2015 agreement.

       “The United States is proud to have rejoined the Paris Agreement,” Blinken told his fellow ministers. “We believe major economies like those in the G20 should support developing economies to pursue economic growth in a green and a sustainable way.”

       The G20 ministers will also discuss sustainable development and trade.

       Italy hopes the meeting will help promote more sustainable and resilient recovery as the world emerges from the global COVID-19 crisis.

       Reflecting that, for the first time since 1999, when the grouping was formed, development ministers were invited by Italy to join ministers of foreign affairs in a joint session.

       The southern Italian city chosen to the meeting could be an inspiring symbol for development.

       For decades, visually stunning Matera, a provincial capital of Basilicata, one of Italy’s poorest regions, had been synonymous with southern European poverty and underdevelopment.

       Matera’s famous “Sassi” – literally stones – were dwellings carved out of natural caves of tuff. In recent years, the “Sassi” have been increasingly converted into boutique hotels, restaurants and getaway homes for the affluent, eager to be inspired by dramatic views from the city, which towers over a torrent.

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