In the mountain streams of the American West, the trout rules. People don't just catch this fish; they honor it. And spend lots of money pursuing it.
But some western trout may be in trouble. Rivers and streams are getting warmer and there's often less water in them. Scientists suspect a changing climate is threatening this iconic fish.
I joined two such scientists from the U.S. Geological Survey as they drove up a mountain road in Montana, in the northern Rockies, a place dense with stands of Douglas fir and aspen trees and braided with mountain streams.
Originally published on Wed November 13, 2013 2:01 pm
By Marcelo Gleiser
Can science inspire the same level of passion as religion?
Credit Mauricio Lima / AFP/Getty Images
I was once invited to give a live interview on a radio station in Brasília, the capital of Brazil. The interview took place at rush hour in the city's very busy bus terminal, where poor workers come in from rural areas to perform all sorts of jobs in town, from cleaning the streets to working in factories and private homes.
The experience would mark me for the rest of my life and set a new professional goal that I had not anticipated early in my career: to bring science to the largest number of people possible.
We face real-world decisions <em>now</em> about everything from sea level rise, to energy infrastructure to what food is best for you.
Credit Karen Bleier / AFP/Getty Images
Climate change is not the only place scientists and politicians get in trouble with each other. Energy policy, endangered species, stem cells, heck, even defining what constitutes a healthy diet can cause tension between the domains of policy and the domains of research.
Scientists say they just want to stick to the data and politicians say the world isn't that simple. So, who is right and who is really being simplistic about the way the world works?
Originally published on Tue November 12, 2013 4:49 pm
By Alva Noë
The word for milk in German is "Milch." In French it is "lait." Two quite different words — Milch, lait — for one thing. This is the basic observation that supports the linguistic principle that the relation between words and their meanings is arbitrary. You can't read the meaning off the word. And what a word means doesn't determine or shape the word itself. The bottom line: you need to learn words.
This map from the NOAA Environmental Visualization Laboratory shows the amount of heat energy available to Typhoon Haiyan between Oct. 28 and Nov. 3. Darker purple indicates more available energy. Typhoons gain their strength by drawing heat out of the ocean. The path of the storm is marked with the black line in the center of the image.
An artist's rendition of the GOCE satellite shows the craft in its orbit around Earth. After four years of studying oceans and gravity fields, GOCE re-entered the atmosphere over the Southern Atlantic Ocean Sunday night.
Credit ESA /AOES Medialab
More than a ton of advanced electronics, including an ion engine and sensors that help detect variations in gravity, crashed into Earth's atmosphere Sunday night, when the European GOCE satellite ended its four-year mission. Most of the 2,425-pound craft disintegrated when it re-entered the atmosphere over the South Atlantic Ocean; about 25 percent did not.
Ronald Heifetz has been a professor of public leadership at Harvard's Kennedy School for three decades, teaching classes that have included aspiring business leaders and budding heads of state. Each year, he says, the students start his course thinking they'll learn the answer to one question:
As leaders, how can they get others to follow them?