Greta Thunberg sets sail on zero-carbon journey

Climate Change activist Greta Thunberg is heading to the United States from Plymouth in a sailboat with no toilets, kitchens or privacy.

The two-week voyage across the Atlantic will take her to New York for a UN climate summit.

Thunberg will make a zero-carbon journey after she announced she would no longer fly to environmental conferences.

She will also attend a summit in Santiago, Chile, in December.