Greta Thunberg says people underestimate ‘angry kids’ as decade ends with one of hottest years on record

Teenage activist Greta Thunberg said the world was underestimating "angry children" as she arrived for this year's international climate summit in Spain after a three-week journey crossing the Atlantic.  Her arrival came as the UN said this decade will be the warmest on record, with 2019 among the top three hottest years in history.    “Everyone should do what they can to be on the right...