In 2019, U.S. Customs seized 3400 pounds of invasive Chinese mitten crabs at the Cincinnati, Ohio airport. The mitten crab threatens commercial fishing and biodiversity and is listed on the top 100 worst invader list. China is hosting the 15th meeting of the Convention on Biodiversity and is in a position to show leadership in protecting aquatic environments.

Cooperation on this important issue will pave the way for joint efforts to overcome other global challenges. The wholehearted cooperation of China and the United States is essential for the success of any effort to solve global challenges. It is time for concerted action, not squabbling.

China and the United States should proceed from easier topics to more difficult ones, seeking new paradigms of interaction under new circumstances. Success in climate cooperation, if achieved, may serve as a demonstration of feasibility for other areas.

Last week, the world marked the 51st Earth Day. This year’s theme – “Restore Our Earth” – was apt. As the COVID-19 pandemic has reminded us, the effects of human activity on the planet do not respect borders. The Earth is a single living, self-regulating system, and it demands a single, shared system of accounting that balances at the global level. We need a one-Earth balance sheet.

Xi was the first national leader to speak after Biden, emphasizing the need to advance global environmental governance.

China’s lack of environmental regulations has been fingered as a culprit in accelerating the climate crisis, but by digging into the nation’s opaque legal process, changes have been made quietly and consistently towards accountability in pollution and waste.

As the United States prepares for a radical course-correction on climate change, China is raising its game. Climate action has become yet another front in the competition between the world’s two largest economies. Who will cross the net-zero-emissions finish line first?

China’s pledge in September to pursue carbon neutrality by 2060 was followed by a similar pledge from Japan a month later. With these commitments being made at a time when the US has withdrawn from the Paris climate accord, it is easy to interpret them as part of the ongoing geopolitical competition for global leadership. But managing climate change is not a zero-sum game. Here, national competition to strengthen ambitions and policies benefits everyone.

Millions of people around the world are facing significant adversity. Governments must provide adequate financial and social protection, so that the poor and marginalized do not feel they must choose between protecting their health and providing for their families. And they must address the deeper social inequalities that the pandemic has exacerbated.

In his video address to the United Nations General Assembly in September, Chinese President Xi Jinping announced a slight improvement of China’s 2015 Paris climate agreement pledge: national carbon dioxide emissions should now peak before 2030 rather than around 2030.