A New York Times piece from this week provides a comprehensive overview of recent findings underscoring the urgency of action to fight climate change, and the severity of the impacts we already face.

Since the rise of industry in the second half of the 19th century, when widespread emissions of greenhouse gases began, the world has warmed by about 1.1 degrees Celsius.

But how fast temperatures will continue to increase, and how much worse things may get, depends in large part on whether the world reins in greenhouse gas emissions, and by how much. After flattening between 2014 and 2016, annual emissions from burning fossil fuels for energy have risen again.

For the latest on sea level rise, melting permafrost, extreme weather, and other serious indicators, see the full story.