Transportation: Vehicle miles driven per capita are dropping
“For decades, the country’s driving pattern moved in sync with the economy. Now, we’re driving less even though the economy has been expanding for more than a decade.” Source: America’s…
Energy: Lifecycle GHG emissions from a hybrid, plug in hybrid and an EV are about the same
This graphic, from the International Energy Agency, illustrates the lifetime CO2 equivalent emissions from different types of vehicles. “BEV” is a battery electric vehicle with a 400 km range, HEV…
Energy: In many countries, hybrid gas/EVs emit lower emissions than pure electric vehicles
An average battery electric and plug-in hybrid electric cars using electricity characterised by the current global average carbon intensity (518 grammes of carbon-dioxide equivalent per kilowatt-hour [g CO2-eq/kWh]) emit less…
Energy: Unplugging your cell phone charger does nearly nothing for the environment
Few people have any idea about the lifetime energy usage of popular consumer products. 50-75% of the energy and green house gas emissions for many cars occurs during manufacturing. Switching…
Energy: Over the past decade, U.S. energy predictions were way off
In 2010 the U.S. Energy Information Administration published its forecasts for 2019 on topics such as oil and natural gas production, oil imports, coal fired electricity generation, green house gas…
Coldstreams.com has moved to a new server (this one)
On December 18, 2019, my Internet web hosting provider announced they are shutting down in February 2020. I am now in process of relocating my 5 web sites to a…