‘I’m a prisoner in my own home,’ asthma sufferer, 15, tells landmark US climate trial

Montana teen Mica is one of 16 plaintiffs in historic trial, alleging state has violated residents' right to healthy environment

Mica, aged 15, learned about climate change at the young age of four, when his parents showed him the documentary Chasing Ice.

I understood it more than my parents thought I would," he testified in a groundbreaking trial on Tuesday. I just knew something bad was happening, but I didn't know exactly what it was."