Greta Thunberg has said that the world needs to learn the lessons of coronavirus and treat climate change with similar urgency.
Researchers also hope to learn whether larger rewards will encourage more citizens away from their cars.
While most of her peers are preparing for university or enjoying summer vacation, 17-year-old Howey Ou is braving intimidation and criticism in China to save the world from climate catastrophe.
Instead of taking to the world's streets to demand climate action on Friday as planned before the coronavirus pandemic, young activists from about 20 countries took to Youtube to share ideas on how to fight global warming.
Licypriya Kangujam, a nine-year-old climate activist, urges the Indian government to declare a health emergency in Delhi as the people living in the city are choking due to the pollution in the air.
"Due to climate-related events, millions of girls lose their access to schools. Events like droughts and floods impact schools directly, displacements are caused due to some of these events," Malala Yousafzai said in an interview.
More than 90% of countries have included health hazards in their commitments to tackle climate change, known as Nationally Determined Contributions (NDCs), up from 70% in 2020, according to new WHO data, set to be released in a forthcoming report.
In a district of Lagos, Nigeria's megacity, a group of teenagers wade through a mass of plastic bottles, food containers and bags that have blocked a waterway.
Researchers from Cambridge University, the University of East Anglia and London-based SOAS looked at a "realistic scenario" known as RCP 8.5, where carbon and other polluting emissions continue rising in coming decades.