Sanda Ojiambo, Executive Director of the United Nations Global Compact, talks to Sarah Brown about how businesses can take positive action to address some of the world's biggest challenges.

Talking about climate change, she says that businesses have a choice: they can grow in a "GDP-led way" or follow "a green model of growth".

"If [these decisions] are made correctly, we can avert what looks like a very bleak future in terms of climate," she says.

She says that the Covid-19 pandemic has presented businesses and the United Nations with "a point of reflection" and an opportunity to reevaluate their priorities.