Earth & Space
What causes an Ice Age to end?
Earth's climate over most of the last million years was much colder than the present. Massive ice sheets repeatedly covered large parts of North America and Eurasia. Periodically, these ice sheets melt when average global temperatures climb sharply to levels of today. Scientists have long... click to read more
Storm Defense with Mangroves
Roughly one in five of us lives in a coastal area at risk from tropical cyclones. For decades investments in early warning systems have allowed us to move out of harm's way, reducing the number of lives lost. Despite this progress, we remain unsuccessful at... click to read more
U.S. Mineral Supply Chain Security in the Age of Pandemics and Trade Wars
The COVID-19 pandemic highlights the fragility of global supply chains and underscores the risks of supply disruptions during a crisis. This is only the most recent reminder of such risks to economies that are heavily reliant on imported goods and materials, with supply chain disruptions... click to read more
Extreme glacier melt and climate change
Glaciers around the world are melting faster than in any previous decade since measurements began. Glaciers form when snow accumulates over many years and compresses into ice. Glaciers accumulate snow in the winter, and then melt ice in the summer. Cold temperatures, more snow, or both,... click to read more
How to know slow slip events and anticipate future large earthquakes
The technology of positioning ourselves with satellites, called GNSS (Global Navigation Satellite System) positioning, is now inseparable from our lives. If we apply high-precision analysis technology for GNSS positioning, we can see the plate tectonics at a cm/year-order speed. When this high-precision observation is performed... click to read more
Editor's picks
Most popular
Popular topics