Tree Hugger listed its top 10 most popular items from the year, which included this one about the best to plants to grow for purifying the air. This is based on studies by NASA. The list tells the best house plants for producing oxygen from CO2 and also for absorbing benzene, formaldehyde and/or trichloroethylene. NASA came up with another list for plants to filter formaldehyde, xylene and toluene. One of the authors of the study wrote this book.
The use of drones has exploded, so to speak, with Obama in office. Jane Mayer wrote an excellent article about the issue in the New Yorker a few weeks back. There’s also a shorter interview with Mayer here.
Drone War – Interesting article, perspective and thought provoking. Hard for me to grasp one assertion that it is somehow wrong to attack a target if there is no physical danger to the team pulling the trigger. Whether it is right to hit the target at all is the issue, not the amount of risk to US personnel.
I have family in the military and would be glad if there was no danger for them.