Green facts

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Source: [http://www.nmrails.org./chew.html 13 Reasons We Need Passenger Rail], Rails - New Mexico's Passenger Rail Action Group Source: [http://www.nmrails.org./chew.html 13 Reasons We Need Passenger Rail], Rails - New Mexico's Passenger Rail Action Group
 +
 +== Melbourne house price rises ==
 +* The median house price in Melbourne soared 13.1% ($50,000) to $431,000 in 2006.
 +* This is the largest dollar increase over a twelve month period.
 +* $50,000 would pay for a solar panel system that would supply more than the average house electricity usage.
 +Source: [http://www.smh.com.au/news/Business/Median-house-price-soars-in-Melbourne/2007/10/27/1192941379124.html Median house price soars in Melbourne], Sydney Morning Herald
== External links == == External links ==
* [http://www21.sbs.com.au/ecohousechallenge/?pid=factoids Ecohouse challenge] "factoids" on saving energy * [http://www21.sbs.com.au/ecohousechallenge/?pid=factoids Ecohouse challenge] "factoids" on saving energy

Revision as of 12:27, 23 December 2007

Interesting facts on green topics.

Contents

Extinctions

From Optus & Australian Wildlife Conservancy

  • Australia has one of the worst rates of animal extinction in the world
  • In 2007. more than 1500 kinds of animals and plants are close to dissappearing forever

Where are we at in 2007?

From The New Inventors, Episode 35 - 02/10/2007 Download

  • In the past 20 years Australian homes have increased in size by 40%, while our families are getting smaller.
  • Australians spend 90% of their time inside.
  • 20 years ago there was no Internet. Today if MySpace was a country it would be the 11th largest in the world.
  • Every year 125 million computers are thrown out across the world, most of these go to landfill.
  • 10 years ago, half the people in the world had never made a phone call. Today, half the people in the world own a mobile phone.
  • Demand for rooftop solar panels is increasing by 16% per year in Australia and by 40% globally.
  • 0.25 hectares of land is required to feed each person. By 2025 there will be less than one third of that area each.
  • The world's population is 6.5 billion, and is increasing by 77 million people per year.

Car fuel consumption standards

  • Japanese cars are required by law to get more than 45 miles per gallon whereas for cars in the U.S. the standard is under 25 mpg.
  • Australian cars have a voluntary target set in 2003 of 6.8L/100km for petrol passenger cars by 2010. This represents an 18% improvement in the fuel efficiency of new vehicles between 2002 and 2010.

Cycling saves carbon emissions

A cyclist who commutes 18km each way every day on a relatively flat commute will save each year:

  • 2.6 tonnes C02 and $7000 compared to a large car like a Land cruiser
  • 0.9 tonnes C02 and $3000 compared to small car like a Corolla

Trains are the best form of urban transport

Rail passenger transport has the lowest carbon emissions - full trains are clearly much more energy efficient than cars. Relative to a trip in a car, carbon emissions are:

  • Train trips - one eighth (8 times better)
  • Light rail - one quarter (4 times better)
  • Buses - one half (2 times better)

Australian households create 9 tonnes of CO2 per year from electricity usage

  • The average Australian home uses about 20kW/h of electricity per day, which translates to about 9 tonnes of carbon dioxide emissions per year.
  • A solar efficient house with a solar array can greatly reduce or eliminate these emissions. More information.
  • The British Government estimates eight percent of all domestic electricity is consumed by devices in standby The Energy Challenge (PDF)

Rail vs road - some points to consider

  • A modern small automobile with two passengers generates almost 25 times the air pollution, per passenger mile, as a four car commuter train at 35% capacity.
  • Two sets of commuter rail tracks will handle the passenger traffic of at least six lanes of highway.
  • A new light-rail line costs about a third of a new highway or loop road, and recent developments in track-laying technology can shave 60% to 70% off that cost.
  • Trains are faster, quieter, and smoother than buses. In addition, they avoid traffic jams and most accident scenes.
  • Modern commuter and light-rail trains are built to run forward or backward, eliminating the need for huge turnaround loops.
  • Rail deaths and injuries are much lower compared to those in automobiles.
  • Rail cars and locomotives last much longer than cars and trucks (in some cases up to 100 years) with appropriate maintenance.
  • Railroad tracks are cheaper and easier to maintain than roads and highways.
  • There is no rubber tire disposal problem with trains (a much bigger issue than many people realize).

Source: 13 Reasons We Need Passenger Rail, Rails - New Mexico's Passenger Rail Action Group

Melbourne house price rises

  • The median house price in Melbourne soared 13.1% ($50,000) to $431,000 in 2006.
  • This is the largest dollar increase over a twelve month period.
  • $50,000 would pay for a solar panel system that would supply more than the average house electricity usage.

Source: Median house price soars in Melbourne, Sydney Morning Herald

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