New York City is sinking (1–2 millimeters a year) says a scientific paper, due to many people and heavy buildings.
Can environmentalists buy out a mining site near Yellowstone? They need some $3 million more to do it.
[Update: Make that just $2.45 million.]
Electric trucks may have a better future than electric cars.
The “Virtual Power Plant”: We drain your battery first. Then we cut off your heat.
Image by André Natta is licensed under Creative Commons license CC BY 2.0.