FedEx is ahead of its competitors

The latest IPCC report indicate that global surface temperature will probably rise a further 1.1 to 6.4 °C (2.0 to 11.5 °F) during the twenty-first century. FedEx chief Frederick W. Smith spoke out Monday in favor of a wide range of solutions to America's dangerous addiction to foreign oil. Smith promoted the agenda of the Energy Security Leadership Council.

Does the evidence shows that the Earth has been warming and cooling on its own for millions of years? Or is there no scientifically proven link between CO2 production and temp changes on earth? Should a a carbon tax imposed?

Or what about our landfills? If landfill gas is not harvested, it escapes into the atmosphere: this is undesirable because methane is a greenhouse gas with much more so called global warming potential than carbon dioxide. Over a time span of 100 years, one ton of methane produces the same greenhouse gas effect as 23 tons of CO₂. Political and public debates continues regarding the appropriate response to global warming. The available options are mitigation to reduce further emissions; adaptation to reduce the damage caused by warming; and, more speculatively, geoengineering to reverse global warming. Most national governments have signed and ratified the Kyoto protocol aimed at reducing greenhouse gas emissions.

When methane burns, it produces carbon dioxide in the ratio 1:1 -- CH₄ + 2O₂ = CO₂ + 2H₂O. So, by harvesting and burning landfill gas, its global warming potential is reduced, in addition to providing energy for heat and power. The major greenhouse gases are water vapor, which causes about 36–70 percent of the greenhouse effect CO₂, which causes 9–26 percent; methane (CH₄), which causes 4–9 percent; and ozone, which causes 3–7 percent.

FedEx is ahead of its competitors in going green. I don't know how a carbon tax is going to help our global warming situation, but at least it may be a step in the right direction.

I have developed the DRS2CH4 digester is a series of processes in which microorganisms break down biodegradable material, glass and metals in the absence of oxygen. Forming a sludge of organic waste, it provides volume and mass reduction of the input material. As part of an integrated waste management system, utilizing anaerobic digestion to reduces the emission of landfill gas into the atmosphere. Anaerobic digestion is a renewable energy source because the process produces a methane and carbon dioxide rich biogas suitable for energy production helping replace fossil fuels. Also, the nutrient-rich solids left after digestion can be used as fertilizer. Again, it will not solve our global warming issues, but another step in the right direction.

TLC Earth.org