The UK had recently also announced a new commitment to reduce its greenhouse gas emissions by at least 68 per cent by 2030, compared to 1990 levels.
He said he will immediately start working with his counterparts around the world to do all they possibly can, including convening the leaders of major economies for a climate summit within his first 100 days in office.
Britain's Prime Minister Boris Johnson, China's President Xi Jinping, France's President Emmanuel Macron and Singapore's Prime Minister Lee Hsien Loong are among the more than 75 leaders taking part in the virtual summit. He said, "We can use scientific advances to protect our planet, our biosphere against a challenge far worse, far more destructive, than even the coronavirus pandemic".
The move was announced ahead of the recent global online Climate Ambition Summit, which was co-hosted by the UK.
Biden reiterated his campaign pledge that his administration will set a target of cutting U.S. emissions to net zero no later than 2050.
An invitation didn't come despite Ardern, a former president of the International Union of Socialist Youth, enthusiastically embracing United Nations mandated climate policies during her tenure as prime minister, including the passage of the Zero Carbon Act past year.
Today we have seen what can be achieved if nations pull together and demonstrate real leadership and ambition in the fight to save our planet. "The country is falling back to its old addiction to fossil energy and infrastructure investment", he said. "We have already scrapped two coal power projects that were supposed to produce 2,600 megawatts of energy, and replaced [them] with hydroelectricity".
In a best-case scenario, she noted, her nation aimed to eliminate fossil fuels by 2030 through an "energy revolution" that would put solar panels on roofs and electric vehicles in garages.
While the country's contribution to global emissions is less than 1%, "sadly we are the fifth-most vulnerable country to climate change", Khan said. Canada promised to raise its 2030 emissions target and to boost carbon prices - the most substantial commitment the country has ever made - but one that climate campaigner Alex Scott with the environmental think tank E3G said wasn't "super ambitious."
Japan will work toward a green society through innovations such as next-generation solar cells, carbon recycling and the utilization of hydrogen, he said.
The UN surely has a crucial role in this regard and needs to adopt a more proactive approach in ensuring the implementation of the protocols on climate change, remove the inadequacies in them and devise a mechanism whereby the developing countries receive the required financial and technical assistance.
Our prime minister, however, was denied a speaking spot at the event due to Australia's perceived lack of action on climate issues. A target of achieving climate neutrality or net zero greenhouse gas emissions in 2060 backed up with a roadmap with clearly defined milestones and policy plan is critical if India is to grow its economy and develop in a climate-constrained world.
Over 122 countries in the climate pact, including China, have communicated their intention to upgrade their goals but have yet to submit new targets, according to a tracker by managed by the Washington-based World Resources Institute.
This must be fully reflected in the revised and strengthened Nationally Determined Contributions that the signatories to the Paris Agreement are obliged to submit well before the UN Climate Change Conference next year in Glasgow, Scotland.