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davido T

GHG Protocol Initiative - 0 views

www.ghgprotocol.org/...layout.asp

carbon_footprint_calculators

shared by davido T on 31 Oct 07 - Cached
  • a decade-long partnership between the World Resources Institute and the World Business Council for Sustainable Development
  • Designing a Customized Greenhouse Gas Calculation Tool
    • davido T
      davido T on 01 Nov 07
       
      go back to this; downloaded the pdf (44pgs)
    • davido T
      davido T on 01 Nov 07
       
      Table of Contents Chapter 1 Introduction 2 Chapter 2 E lements of an Entity-Level Calculation Tool 6 Chapter 3 Deciding which Tool Elements to Customize 9 Chapter 4 Customizing the GHG Accounting Concepts 16 Chapter 5 E stimating or Measuring Emissions 20 Chapter 6 Designing a Comprehensive Stakeholder Process 28 Chapter 7 Launching the Customized Calculation Tool 31
  • The GHG Protocol provides the accounting framework for nearly every GHG standard and program in the world - from the International Standards Organization to the EU Emissions Trading Scheme to the California Climate Registry - as well as hundreds of GHG inventories prepared by individual companies.
davido T

Waste Home - Life-Cycle of Waste Image and Description | Climate Change - What You Can ... - 0 views

epa.gov/...lifecycle.html

ghg_models life_cycle_analysis warm_model

shared by davido T on 14 Sep 07 - Cached
  • Landfilling, the most common waste management practice, results in the release of methane from the anaerobic decomposition of organic materials. Methane is 21 times more potent a GHG than carbon dioxide. However, landfill methane is also a source of energy, and some landfills capture and use it for energy. In addition, many materials in landfills do not decompose fully, and the carbon that remains is sequestered in the landfill and not released into the atmosphere.
  • The image above illustrates the four main stages of product life-cycles, all of which provide opportunities for GHG emissions and/or offsets. These stages are: raw material acquisition, manufacturing, recycling, and waste management.
davido T

Despite lower carbon dioxide emissions, diesel cars may promote more global warming tha... - 0 views

www.stanford.edu/...jacobsonJGR1023.html

fossil-fuel g810--research_project--lit_review ghg particulates--co2 particulates--pm

shared by davido T on 06 Dec 07 - Cached
  • The state of California is implementing an even more restrictive standard in 2004, allowing only 0.006 grams per kilometer [0.01 grams per mile] of particulate emissions.
  • Even if the California standard were introduced worldwide, says Jacobson, diesel cars may still warm the climate more than gasoline cars over 13 to 54 years.
  • Jacobson says that new particle traps being introduced by some European automobile manufacturers in their diesel cars appear to reduce black carbon emissions to 0.003 grams per kilometer [0.005 grams per mile], even below the California standard.
  • ...4 more annotations...
  • But, he says, "diesel vehicles emitting at this level may still warm the climate more than gasoline over a 10 to 50 year period, not only because of black carbon emissions, but also because the traps themselves require addition fuel use.
  • Gasoline/battery hybrid vehicles now available not only get better mileage than the newest diesels but also emit less black carbon."
  • In practice, less than 0.1 percent of light vehicles in the United States run on diesel fuel, whereas more than 25 percent do in Europe. (Almost a third of new European cars in 2000 were diesel powered.)
  • In both the United States and Europe, virtually all heavy trucks and buses are diesel powered, and American diesel consumption rates for all modes of ground transportation combined are about 75 to 80 percent of those in Europe.
    • davido T
      davido T on 06 Dec 07
       
      source?
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