April 27, 2016
A reduction in the amount of oxygen dissolved in the oceans due to climate change should be evident across large parts of the ocean between 2030 and 2040.
NCAR map shows ocean deoxygenation by time of emergence
March 28, 2016
The formation of a distinct pattern of sea surface temperatures in the middle of the North Pacific Ocean can predict an increased chance of summertime heat waves in the eastern half of the United States up to 50 days in advance.
Image of sea surface temperatures that predict a heat wave

Leveraging publicly available social media posts could help disaster response agencies quickly identify impacted areas in need of assistance, according to a Penn State-led team of researchers.

A and B are satellite images of a flooded road in Colorado after the 2013 floods. C was taken by Civil Air Patrol and shows the same submerged road, identifying with a square a stranded truck. D is the image C after it has been classified for water pixels. E is a close-up of C, showing the stranded truck. F is the same truck in a Flickr post.  Image: Guido Cervone / Penn State

Astronomers have made a significant step toward confirming a proposed explanation for how solar flares accelerate charged particles to speeds nearly that of light.

Particle acceleration in a solar flare.  (Credit: Alexandra Angelich, NRAO/AUI/NSF)
April 4, 2016 | If scientists could directly measure the properties of all the water throughout the world’s oceans, they wouldn’t need help from NCAR scientist Alicia Karspeck. But since large expanses of the oceans are beyond the reach of observing instruments, Karspeck’s work is critical for those who want estimates of temperature, salinity, and other properties of water around the globe.
Data assimilation: Weather forecast map of southeastern US
March 24, 2016 | Indigenous people around the world are often among the first to experience the consequences of extreme weather and climate change. The effects on their lives and livelihoods of sea level rise, changes in farming and fishing seasons, and other environmental impacts often are dramatic. Yet their perspectives are rarely considered in public policy discussions. In many tribal communities, climate change exacerbates a situation already marked by economic hardship, resource loss, and discrimination.
Rising Voices participants at a workshop in Boulder.
March 29, 2016 | Over the past few decades, computer models of the Sun’s interior have matured, showing that turbulent flows of plasma create a chaotic magnetic tangle. And after observing the Sun's surface for hundreds of years, scientists know that order emerges from that tangle in the form of the solar cycle.
An image from a high-res model of the Sun
March 15, 2016 | By spitting gases into the atmosphere that form sunlight-blocking particles, volcanoes have a cooling influence on the world’s climate. But scientists warn that satellite observations may be failing to detect the particles (called aerosols) at lower levels of the atmosphere—which means that the computer models used by climate scientists may also be underestimating their cooling effects.
Volcanoes and climate: computer model image of volcanic emissions around globe
February 9, 2016 | The planet is a lot closer to 2 degrees Celsius of warming than official temperature records indicate. In 2015, the hottest year on record, the average annual temperature was a full 1 degree C (1.8 degrees Fahrenheit) warmer than in pre-industrial times. That’s halfway to the limit of 2 degrees C (3.6 degrees F) that world leaders set in Paris in December to prevent potentially catastrophic warming. But what if we’re already effectively well beyond 1 degree C of warming?
Climate: Map showing 2015 was warmest year on record