Cathy Newman , Presenter

We spoke to Dr Comfort Ero, President of the International Crisis Group, and began by asking whether after a ceasefire was agreed in Gaza – could Donald Trump bring peace to Ukraine.

European leaders have begun their meeting at the World Economic Forum in Davos in the shadow of Mr Trump’s first full day in office – and they started with a robust defence of action on climate change.

We’re in Davos, the mountain top town in Switzerland where business and political leaders meet each year to – as they see it – try to improve the state of the world.

We spoke to Antoine Renard from the World Food Programme and began by asking him if celebrations at the news of the ceasefire were curtailed by the overnight violence.

We spoke to Nomi Bar-Yaacov, an international peace negotiator with decades of experience in conflict management.

Economics Professor, Mariana Mazzucato, from University College London, and Rain Newton-Smith, Chief Executive of the CBI discuss whether the Chancellor has now turned a corner with the economy.

Trade policy Minister Douglas Alexander welcomed news of a ceasefire in Gaza as he announced a multi billion pound investment deal with Malaysia.

We spoke to Dr Varun Sivaram, a senior fellow for energy and climate at the Council on Foreign Relations and Dr Peter Kalmus, a climate scientist and the author of “Being the Change: Live Well and Spark a Climate Revolution’.

We spoke to the Labour MP Liam Byrne, who’s chair of the Business and Trade committee and author of a book called Turning to Face the East: How Britain can Prosper in the Asian Century.

An army veteran has become the first disabled person to ski solo to the South Pole.

We spoke to the economist Rupert Harrison, who was chief of staff to former chancellor George Osborne.

We spoke to the Shadow Home Secretary Chris Philp, who joins us from Parliament.

We spoke to David Acuna, battalion chief with the California Department of Forestry and Fire Protection.

Lizzie Jones, a serving officer, has spoken exclusively to Channel 4 News about misogyny in policing.

The Conservative MP Robbie Moore said his district in Bradford has been “haunted” by “the grooming of children for decades” and accused local leaders of “refusing” to launch an inquiry.