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.
Greta Thunberg has said that the world needs to learn the lessons of coronavirus and treat climate change with similar urgency.
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.
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.
Researchers also hope to learn whether larger rewards will encourage more citizens away from their cars.
Biden has invited 40 world leaders including Xi and Russia's Vladimir Putin to the meet starting on Earth Day, meant to mark Washington's return to the front lines of the fight against climate change after former president Donald Trump disengaged from the process.
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.
Now to collect data that can help presage drastic weather changes and keep people abreast of research in climate change, Air New Zealand is converting one of its domestic aircraft into a flying environmental monitor as part of a world-first project with Nasa.
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.