Business leaders will play a crucial role in the success of Tuesday’s Climate Summit, according to United Nations Secretary-General Ban Ki-moon.

“The effects of climate change are already widespread and costly,” he says in a 5-minute video released this week by the UN Global Compact that focuses on the key role of business. “We need government leadership to limit global temperature rise, build resilience and steer the world to a meaningful climate agreement in Paris in 2015. But business too has a crucial role to play.”

In the video, Ban commends corporate leaders “who are bringing ambitious vision and commitments” to the Summit, to be held at UN Headquarters in New York.

The video focuses on a number of business leaders who have already taken action to stem the impact of climate change.

“We’re increasing our energy efficiency through new technologies and processes,” says Indra Nooyi, chairman and CEO of Pepsico.

Nooyi adds that her company is reducing its water consumption, thereby protecting its license to operate in communities, and working with farmers to make its agricultural practices more sustainable.

“As the leader of a company that is in the business of food and beverages. I deeply understand the critical impact of climate change on food and water supplies and that’s why I believe all of us need to take action, now,” she says.

The president and CEO of Ikea Group says his company is committed to making its operation sustainable. “We have put aside 1.5 billion euros as a first step in order to produce the same amount of energy as we consume,” says Peter Agnefjall.

The company has also invested in 700,000 solar panels and more than200 wind turbines.

The CEO and general manager of Italy’s largest power company, Enel, says it is investing in some 4,500 megawatts of renewables over five years. “We will reach carbon neutrality within 2050,” says Franceso Starace, who calls for a global agreement “of at least the largest and most polluting countries around the world to take action heavily on climate change.”

The chairman of China Petroleum & Chemical Corporation, known as Sinopec, says fast action is necessary. “If we don’t, the consequences on people’s economies and ecosystems would be catastrophic,” says Fu Chengyu.

The chairman of Royal DSM, a Dutch-based company active in health, nutrition and materials, calls climate change “one of the biggest issues” faced by mankind.

Feike Sijbesma says his company is working to make cars lighter, thereby cutting fuel use; to make electronics greener; to use agricultural waste for new forms of energy; and to boost the output of solar cells.

“We need to take up our responsibility in this climate summit right now, for the benefit of people today and generations to come,” he says.

Statoil’s CEO, Helge Lund, says one quarter of all carbon stored from oil and gas production is stored by his company. He calls for a price on carbon emissions as an efficient way to secure innovation and to create a level playing field.

“I hope the Summit this week will be really productive and provide for a common understanding that eventually makes the global community do the right thing next year in Paris,” he says in a reference to the planned December 2015 meeting to nail down a binding agreement among the world’s nations.

“As I see it, inaction is not an option. We know we have to act and we know what it would take to achieve significant progress.”