Saturday, October 18, 2008

Average Energy Usage

According to www.simplyswitch.com

Gas - average consumption information

Number of bedrooms at your property Avg. gas consumption (kWh)
110,000
215,000



Electricity - average consumption information




Number of bedrooms at your property Avg. electricity consumption (kWh)
12,500
24,000


Friday, March 30, 2007

Green Roofs: Building for the Future

Green Roofs: Building for the Future

A Blog worth a review -

By Dara Colwell, AlterNet. Posted March 6, 2007.

AlterNet: EnviroHealth: Green Roofs: Building for the Future

points out that Germany spearheaded the modern movement back to grassy rooftops.

With
today, roughly 14 percent of the country's total roofs are greened, the industry continues to grow 10 percent per year and some German cities actually levy a "rain tax" on non-greened, asphalt rooftops.

The blog puts forward
- it helps mitigate storm water runoff
- roof research program claims that it retains between 60-100 percent of rainfall
- combat "urban heat island effect," a phenomenon that essentially means that cities are hotter -- by roughly 10 degrees Fahrenheit -- than their surroundings.
- protected from ultraviolet radiation and the extreme fluctuations in temperature that cause roof membranes to deteriorate, green roofs offer longer roof life -- they can last up to 40 years - and lower roof maintenance



Monday, January 15, 2007

Carbon Calculators

1.Conservation.org

conservation.org

CI's new suite of carbon calculators empowers you to offset your personal carbon dioxide (CO2) emissions and much more.



2. Carbon Calculator

The CarbonNeutral Company


Carbon Calculator to work out your personal emissions


3. BP and climate change
Non-Flash carbon footprint calculator

The carbon calculator provides a simple guide to your household carbon footprint based upon key features of your home

CO2 Calculator http://www.nef.org.uk/energyadvice/co2calculator.htm

Directions: Type the energy value from your bill or records into the left column

Saturday, December 23, 2006

PCs cost



An article - PCs cost


The resulting wasted energy from not turning off PC costs UK firms £115m a year and results in 700,000 tonnes of completely unnecessary CO2 emissions.

18 percent of work PCs are never turned off at nights and weekends


That equates to 200,000 small family cars.

Monday, December 18, 2006

An interesting post from All Headline News Corp

Title -
Gore: Time Is 'Now' To Mobilize On Global Warming


December 17, 2006 7:40 a.m. EST

George McGinn - All Headline News Staff Writer
the bit that caught my eye -

"The American political system is seemingly paralyzed by this issue," Gore said. "And when that becomes the case, then this is when the grassroots movement has to get mobilized."

Gore said the U.S. is responsible for contributing to more than 30 percent of the climate crisis.

"It's not a political issue as much as a moral one," Gore said. "And to allow this to happen is unethical."

Sunday, November 19, 2006

Cars and London

Transport contributes 21% of all carbon emissions in London (stat not verified)


Exactly how much does the car use (how green is my car?) Database Search by Make & Model gives the results


In a recent article by Beevers and Carslaw (2005) said:-

“the expected increase in emissions from buses have been mostly offset by the widespread introduction of particle traps to the new and existing bus fleet as well as the introduction of newer technology bus engine” (Beevers and Carslaw, 2005).


Beevers, S. D. and D. C. Carslaw (2005). "The impact of congestion charging on vehicle emissions in London." Atmospheric Environment 39(1): 1-5.

Friday, September 22, 2006

Biofuels could end up damaging the natural world

the posting goes on to suggest that the problems include some of the following - (directly quoting from the site -

"
  • The grain required to fill the petrol tank of a Range Rover with ethanol is sufficient to feed one person per year. Assuming the petrol tank is refilled every two weeks, the amount of grain required would feed a hungry African village for a year
  • If ethanol is imported from the US, it will likely come from maize, which uses fossil fuels at every stage in the production process, from cultivation using fertilisers and tractors to processing and transportation. Growing maize appears to use 30% more energy than the finished fuel produces, and leaves eroded soils and polluted waters behind
  • Using ethanol rather than petrol reduces total emissions of carbon dioxide by only about 13% because of the pollution caused by the production process, and because ethanol gets only about 70% of the mileage of petrol
"
food for thought