Nobel Memorial Prize in Economic Sciences is "scared" by trace amounts of invisible, natural, harmless atmospheric gas

Nobel winner: Small steps can curb warming

Businesses and the public shouldn't wait for a single "global solution" to greenhouse-gas pollution, because small steps and local solutions also can have significant results.  [How significant, specifically?  What measurable change in temperature will occur?]

That was the message that Nobel Prize winner Elinor Ostrom gave to a gathering of business leaders on Tuesday.
...Commuters who drive to work instead of riding a bike, for example, may not realize that they are forgoing the possible health benefits of pedaling to the office, she said.

Ostrom won the Nobel Memorial Prize in Economic Sciences in 2009 and was the first woman to do so. Her research focuses on managing common resources such as forests, fisheries and grazing land.

After the talk, an audience member asked the professor if she was "optimistic or pessimistic" about the problem of greenhouse gases. Time is not on our side, Ostrom replied.

"I am talking about it because I am scared," she said.