Planes bring food, medicine and tents to disaster zone, with officials blaming floods on climate change

Planes carrying fresh supplies are forming a humanitarian air bridge to flood-ravaged Pakistan as the death toll passed 1,200, officials have said with families and children at special risk of disease and homelessness.

The ninth flight from the United Arab Emirates and the first from Uzbekistan were the latest to land in Islamabad overnight as a military-backed rescue operation elsewhere in the country reached more of the 3 million people affected by the disaster.

The climate crisis is the prime suspect, but the vulnerability of poor citizens and other factors are important too

The climate crisis is the prime suspect for the devastating scale of flooding in Pakistan, which has killed more than 1,000 people and affected 30 million. But the catastrophe, still unfolding, is most likely the result of a lethal combination of factors including the vulnerability of poor citizens, steep mountainous slopes in some regions, the unexpected destruction of embankments and dams, and some natural climate variation.

The horrific scale of the floods are not in doubt. “We are witnessing the worst flooding in the history of the country,” said Dr Fahad Saeed, a climate scientist with the Climate Analytics group, who is based in Islamabad.