You are browsing the archive for climate change.
1 April 2020
Kim Cobb loves being out in the field. She talks about the euphoria and passion she has for it, saying “It’s like nothing I’ve ever experienced literally, and I’ve given birth to four children.”
25 March 2020
Humanity faces a crisis today, and we struggle to find the right way to deal with it, to solve it, to live meaningfully within the constraints it imposes. You might think I’m referring to coronavirus, but it’s actually climate change that’s on my mind. Hope Jahren, author of the incandescent Lab Girl, has a new volume out, on the unsustainability of modern Western life, and what actions we can take …
19 March 2020
New research finds soot from global fires ignited by an asteroid impact could have blocked sunlight long enough to drive the mass extinction that killed most life on Earth, including the dinosaurs, 66 million years ago.
6 March 2020
We’ve come to the end of our March Council meeting,
And I’ve been asked to summarize in case you’ve been sleeping.
23 February 2020
For the past couple of days, we’ve been lucky to have some all-too-infrequent sunny days, giving us some sunshine to lift our spirits and send us searching for our sunglasses. The clear weather is also a good time for an updated MODIS image of the Lake Erie Basin. The image above shows the lake is nearly ice-free except for some narrow shoreline areas in the western basin. The surface water …
27 January 2020
An analysis of timber used to construct buildings in Europe hundreds of years ago is giving scientists and historians new insights into the region’s history from the 13th to 17th centuries. Using samples of wood taken from old buildings in Europe, Fredrik Charpentier Ljungqvist, a historian and paleoclimatologist at Stockholm University, and Andrea Seim, a dendrochronologist at the University of Freiburg, figured out when the trees used in the buildings …
13 January 2020
Bärbel Hönisch, Associate Professor of Environmental Sciences at Columbia University also known as Queen of Boron, transported us millions of years beyond the ice cores to the realm when Greenland had no ice.
6 January 2020
Drilling engineer and ice core scientist Robert Mulvaney has driven thousands of kilometers over Antarctica in the past few years in a snow tractor, creeping slowly over one of the highest points of the ice sheet, near a location known as Dome C. He’s looking for the perfect place to drill one and a half million years into the past.
5 January 2020
Happy New Year, everyone! This year, I am not worrying about stereotypical New Year’s resolutions, such as trying to exercise more or learn a new language. Instead, I am making some climate change resolutions. That is, I am making some resolutions to lower my environmental (including carbon) footprint. These resolutions are not perfect — there is certainly much more that I could do to lower my footprint. However, I have …
I moved to Australia last year, and I am very happy and proud to be living in this incredible country. Recently, my heart has been breaking as I hear about the Australian bushfires, which are catastrophic and have grown much worse over the past couple of weeks. The extreme nature of the fires is no doubt due to climate change, as explained, for example, here and here. I live in …
26 December 2019
The rapid retreat of glaciers from alpine regions around the world could result in widespread ecosystem losses, according to new research. Now, scientists are exploring a hairy solution to this hairy problem in the form of llamas.
23 December 2019
Deaths due to famine have fallen precipitously in recent decades, but undernutrition, which affects one in five children worldwide, remains rampant. Now, researchers are using satellite imagery and social media to detect food-scarce regions before they become full-blown crises.
18 December 2019
A new study finds increasing average winter temperatures are driving up reported Lyme disease cases in the Northeast and Midwest, especially near the outer limits of tick habitats where warmer winters boost tick survival rates and ability to find hosts. Public health officials are even seeing the disease spread to parts of Canada, in areas where it has never been seen before.
17 December 2019
Wildfires leave behind large swathes of blackened earth when they raze a landscape. That charred material contains a host of molecules that could continue to release carbon dioxide into the atmosphere days and weeks after the fire has gone out, according to new research.
9 December 2019
AGU Revises Climate and Data Position Statements: Declares World in Climate Crisis and Reaffirms Data as a World Heritage
In a revised climate position statement released today, based on the overwhelming research and scientific evidence, AGU is declaring the world to be in a climate crisis. In a concurrent updated data position statement, AGU describes scientific data as a world heritage and calls for a culture that supports, enables, and nurtures data that is equitable, accessible, and ethical. AGU position statements articulate the views of our community on key …
18 November 2019
Earlier this year, scientists reported that radioactive fallout from nuclear accidents and weapons testing is present in ice sediments on the surface of glaciers in the Arctic, Iceland, the Alps, the Caucasus, British Columbia and Antarctica.
24 September 2019
AGU’s global community of Earth and space scientists has contributed research and expertise to our understanding of—and solutions for—climate change, natural hazards, and their related impacts on people. Climate change, the increasing severity of extreme weather, and resulting floods are health and economic crises that we cannot ignore. To highlight the role that science plays to help address and mitigate issues such as flooding in communities across the United States, …
13 September 2019
Every 4 years, AGU’s members have a chance to weigh in on position statements critical to maintaining the role of science in our society. Make sure your voice is heard. Starting today, 13 September 2019, AGU members will have 30 days to comment on revisions to two position statements: one on data and one on climate change. This open comment period is both an important opportunity for and responsibility of …
14 August 2019
Sea ice in the Bering Sea reached record-low levels during winter 2018, thanks to persistent warm southerly winds. These conditions caused the ice to retreat to the northern reaches of the 800,000 square mile body of water. By the end of April 2018, sea ice was about 10 percent of normal. And then, much to scientists’ surprise, 2019 just missed eclipsing the record set in 2018.
12 August 2019
One of the most alluring parts of Earth and space science is that much of the key research takes place in the field, in some of the most incredible – and inhospitable – environments on the planet: on treacherous polar ice sheets, aboard sea tossed ships, at the mouths of active volcanoes, beneath turbid ocean waters, and atop the highest windswept peaks. Under these often less than ideal conditions, instruments …