"No, not grass — you don't want grass," explains Stuart Gaffin, a research scientist tracked down at Columbia University who turns out to be the city's rooftop Johnny Appleseed.
George, of course, is not the only scientist tracking the physical and biological affects of a warmer climate -- permafrost melting, coastlines eroding, moose expanding northward, walruses losing ice habitat on which to pup and hunt.
Such tools might be useful to a geologist mapping out an oil field or to a climate scientist tracking a large sheet of ice.
The scientists track the speed of growth through tree diameter.
Bands attached to penguins' flippers have helped scientists track their movement and migration for 50 years.
Other scientists track how mating calls turn genes on and off.
Holidaymakers' photos could help scientists track the movements of giant endangered sharks living in the waters of the Indian Ocean, finds a researcher from Imperial College London.
Bumpus was thus able to measure the flow of the Atlantic Ocean over the eastern continental shelf and help scientists track weather patterns as well as nutrient flows and corresponding fish movements.
The information has proved useful in numerous ways, experts said, including helping scientists track the weather and lending insight into nutrient flows and the fish movements that correspond to them.
As mentioned above, some fields offer a physician-scientist track, which goes by many names.
