Australian actress Yael Stone announced that she plans to give up her United States green card to reduce the environmental impact of living in two countries simultaneously.
The science of climate change is, at its heart, fairly simple. When we emit greenhouse gases like carbon dioxide, more heat gets trapped in the Earth's atmosphere, raising global temperatures and destabilizing the climate.
Negotiators from around the world struck an eleventh-hour deal Saturday, laying out rules to implement the Paris Agreement and keep the landmark 2015 climate accord intact.
