raymond723: The UK, US, Canada, Australia, China, Norway, Denmark, Holland, Germany and many other countries are all looking carefully at the prospects of capturing carbon dioxide from coal or gas power plants and storing it deep underground. Barely a day goes by without some new pronouncement - whether it’s politicians saying they are ...

The VW TDI does not require urea injection.  Every engineer knows the easiest way to boost gas mileage is to reduce vehicle weight.  What happened to the aluminum-intensive and composite-intensive vehicles shown at past auto shows?  

ricinro: Mass transit makes sense if you have enough population density.  When and as cities grow (some do), congestion reaches a point to where the benefits of having independent transportation is less than the benefit of mass transportation.  There are only a few places where this is an issue and China will or is projected to be ...

Many American cities are becoming less dense as people move away.  Detroit and Cleveland, for axample, have significantly fewer citizens today compared to the 1950s and 1960s.  Another reason why mass transit in the US is not working.  Also, what do you do for public transportation if you live in a rural or semi-rural area?

Also remember why mass transit faded away in most Ameerican cities in the 1940s and 50s - totally inconvenient.  What do you do when the bus or subway isn't running and you need to go somewhere?

They are in Detroit.  GM, Ford, Visteon, and Delphi have laid off hundreds of engineers in the past 2 years.  I'm sure some of those have a lighting background.