Climate science marks a troubling anniversary this week: in June of 1988, NASA scientist James Hansen told Congress that global warming had already begun to affect the world and would only get worse.
By Julia Conley
With a first-of-its-kind satellite study, NASA scientists have identified more than 30 parts of the globe where the depletion of freshwater has been most dramatic, largely due to human activity and the climate crisis.
Parts of India, the Middle East, Australia, the Arctic, Antarctica, and California were among the places pointed out in the new study, published in Nature on Wednesday, as areas where an overuse of groundwater resources from irrigation, agricultural, and industry projects, as well as the loss of glaciers and ice sheets, have led to water shortages.
By Jessica Corbett
As the Trump administration charges forward with its war on science by canceling a "crucial" carbon monitoring system at NASA, scientists and climate experts are sounding alarms over atmospheric concentrations of carbon dioxide (CO2) that just surpassed a "troubling" threshold for the first time in human history.
By Alex Kirby
The Gulf Stream is slowing, the North Atlantic is cooling. An international scientific study has found new and harder evidence that one of the planet's key heat pumps, the currents which exchange warmth between the tropics and the Arctic, are weaker today than at any time in the last thousand years.
For centuries, human beings have wondered about the possibility of other Earths orbiting distant stars. Perhaps some of these alien worlds would harbor strange forms of life or have unique and telling histories or futures. But it was only in 1995 that astronomers spotted the first planets orbiting sunlike stars outside of our solar system.
By Mariel Borowitz
Scientists and policymakers need satellite data to understand and address climate change. Yet data from more than half of unclassified Earth-observing satellites is restricted in some way, rather than shared openly.
When governments restrict who can access data, or limit how people can use or redistribute it, that slows the progress of science. Now, as U.S. climate funding is under threat, it's more important than ever to ensure that researchers and others make the most of the collected data.
By Jeremy Deaton
President Trump's proposed 2019 budget would slash funding for NASA's Earth Science Division, and while his budget hasn't gained traction in Congress, it is an important statement of the administration's priorities. In a nod to his allies in the fossil fuel industry, Trump is calling for the elimination of vital programs that monitor carbon pollution and climate change.
The United Nations announced Thursday that 2017 was the hottest year on record without an El Niño event kicking up global annual temperatures.
Last year's average surface temperatures—driven by carbon dioxide and other greenhouse gas emissions—was 1.1 degree Celsius above pre-industrial times, putting the world on course to breach the internationally agreed "1.5°C" temperature barrier to avoid dangerous climate change set by the 2015 Paris climate agreement.
By Sharon Kelly
Over the past few years, natural gas has become the primary fuel that America uses to generate electricity, displacing the long-time king of fossil fuels, coal. In 2019, more than a third of America's electrical supply will come from natural gas, with coal falling to a second-ranked 28 percent, the Energy Information Administration predicted this month, marking the growing ascendency of gas in the American power market.
