Justin Forsyth, the Chief Executive of Save the Children UK, told Daybreak the government's proposed Universal credit will mean 150,000 Mothers will lose £88 per week.
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Other entries in the UKTV channel Gold competition included jokes about Donald Trump, Brexit, Southern Rail and Ryanair UKTV channel Gold.
Temperatures will remain close to freezing.
The prime minister's announcement came as international leaders gather in Paris on the second anniversary of the climate change plan.