All Stories by Sid Perkins
- Life
Groovy teeth suggest dinosaur was venomous
Fossils show depression in upper jaw that held venom-producing glands.
- Earth
Mistletoe leaves a big carbon footprint in Yellowstone
Earth sciences reporter Sid Perkins blogs on new research from the annual meeting of the American Geophysical Union in San Francisco.
- Earth
Cameras catch underwater volcano in the act
Seafloor eruption in the South Pacific is the deepest and most violent yet seen.
- Climate
Carbon dioxide: Blame where blame is due?
Blog: Measuring outsourcing of greenhouse gases. From the annual meeting of the American Geophysical Union.
- Earth
Carbon dioxide: blame where blame is due?
Tracking the outsourcing of greenhouse gas emissions.
- Earth
Seismology in your backyard (and on your Twitter feed)
With two USGS programs, Twitter, inexpensive seismic equipment transform citizens into scientists.
- Earth
Earth’s magnetic field … updated
Three most used models of Earth's magnetic field are revised to reflect small changes in the field.
- Earth
Irrigation draining California groundwater at ‘unsustainable’ pace
The GRACE satellites have tracked water movement from the Central Valley since 2003.
- Paleontology
New fossil helps solidify dino origins
The dog-sized creature bolsters the notion that early dinosaurs first appeared in what is now South America.
- Earth
Earth’s atmosphere may be extraterrestrial in origin
Analyses of krypton, xenon hint that air didn’t fizz from within the planet.
- Planetary Science
Pluto’s cloud components verified
Newly analyzed observations suggest that particles are tiny spherules of frozen nitrogen and carbon monoxide.
- Earth
Ocean’s carbon dioxide uptake varies year to year
Data taken hourly by cargo ships show that how much of the greenhouse gas North Atlantic waters absorb varies more than thought.
