Pope Francis encouraged governments and corporations around the world to protect the planet against climate change and help the poor in a TED talk, AP reports.
Why it matters: Francis warned that the world has "roughly fewer than 30" years to reduce carbon emissions and avoid the worst of climate change. He added that the transition from carbon-based fuels should take into account low-income populations and energy sector workers.
The costs of keeping global warming below 1.5°C would exceed the economic benefits up through the year 2100, according to a new study.
Why it matters: One of the biggest challenges to climate action is time delay: we need to pay now to reduce greenhouse gas emissions, but we won't experience the full benefits of those actions for generations into the future.