Objects in Mirror

Objects in Mirror: December 29, 2008 Archive

Winter bike commuting

Posted at 8:59 AM on December 29, 2008 by Julia Schrenkler

Paul Stewart of Minneapolis, Minn. explains that bike commuting saves money:

"When I bike commute I burn one tank of gas a month instead of one a week.That more than covers bike items like lights, clothes, etc. Also I save on car maintenance since I drive only 5,000 miles a year instead of the average 12,000."

But how do you go about riding safely? Our Public Insight Network shares some tips, and we even have a video depicting the prep for a cold commute:

"Joshua Houdek bike commutes two miles from South Minneapolis to his work every day. He takes us through putting on his gear, prepping his equipment, and making the decision to ride even on a -5 degree day." - from Video: Winter Bike Commuting
* Open discussion: Do you ride your bike in winter?

Minnesota life: How not to measure global warming

Posted at 3:56 PM on December 29, 2008 by Julia Schrenkler

In his Gather post about how not to measure global warming, Minnesota Life contributor Greg Schiller shows us images of several Minnesota Weather datapoints. His first example:

ada_weather.jpg

"This is the station at Ada, Minnesota. Notice how close this data point is to buildings, a [satellite] dish and an asphalt street. What do you think it looked like in 1880? Or 1940? So how much has global warming raised temperature here and how much warming comes from the street?" - Greg Schiller

Is Schiller on to something here? Do these types of data point temperatures reflect microclimates, or should we consider the impact of multiple, and clustered microclimates? Review more photos and examples, then join the online discussion.

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