“Even without knowing what the current level of greenhouse gas concentrations would be, the climate models predicted the evolution of global temperature quite well,” says Noah Diffenbaugh. “We have one planet Earth, so we can’t conduct controlled experiments on the actual climate system."
The air above Earth – especially above California – might have way more methane in it than anyone thought. And that could be good news. "Most of the emissions come from a small fraction of sources,” says Stanford Earth's Adam Brandt.
“This idea that you can just be off the grid, we are hearing that more and more,” Sally Benson says about backup power sources. Under some circumstances, the systems may do more environmental harm than good.
As governments in California increasingly consider limiting new residential natural gas connections, it is important to question whether banning natural gas is an “antidote to climate change,” writes Anthony Kovscek.
“One of the ways to sort of insulate yourself better from public safety power shut-offs is to have some local storage so that you can segregate your electrical grid a little bit so that it’s more of a microgrid,” says Tony Kovscek.
Many experts believe recent disasters represent a new era — one in which major wildfires that threaten people and their homes are a regular fixture in our lives. Chris Field talks about how the scientific community is thinking about wildfires.
For more than two years President Donald Trump has talked about pulling out of the landmark Paris climate agreement. Rob Jackson, chair of the Global Carbon Project that tracks carbon emissions worldwide, speaks about this commitment.
Rob Jackson says total global carbon dioxide emissions are rising again in 2019, and other scientists’ warnings about climate change have intensified over the past 12 months. Will world leaders finally listen?
NSF is forcing competition while mandating that a single contractor manage its two large facilities for studying Earth’s shape and vibration. This comes as a surprise, “but it’s not dire news. In a way, I kind of welcome it,” says Greg Beroza.