The wholesale price of propane increased at 3.8% per year from 1990 – 1999. That is the lowest annual increase we are likely to see given:
Natural gas prices have increased sharply in the 1st part of this millennium because
The embodied energy (that is the energy used to make the building) can equal 5- 20 years of the energy consumption of a building. That one reason is why we prefer to use fly ash. It is a waste product that replaces part of the Portland cement in concrete. Portland cement production requires strip mining limestone, crushing the limestone, and enormous amounts of energy to convert the limestone to cement. Fossil fumes are consumed and carbon dioxide is produced both by fuel combustion and limestone conversion.
Buildings are a major source of the pollution that causes urban air quality problems, and the pollutants that contribute to climate change. They account for 49 percent of sulfur dioxide emissions, 25 percent of nitrous oxide emissions, and 10 percent of particulate emissions, all of which damage urban air quality. Buildings produce 35 percent of the country’s carbon dioxide emissions the chief pollutant blamed for climate change.
There are many opportunities to make buildings cleaner. As just one example, if only 10 percent of homes in the U.S. used solar water-heating systems, we would avoid 8.4 million metric tons of carbon emissions each year.
Sun & Earth Construction uses quality materials with low embodied energy, while caring about the environment around us and building cost efficient homes.
The wholesale price of propane increased at 3.8% per year from 1990 – 1999. That is the lowest annual increase we are likely to see given:
Natural gas prices have increased sharply in the 1st part of this millennium because
The embodied energy (that is the energy used to make the building) can equal 5- 20 years of the energy consumption of a building. That one reason is why we prefer to use fly ash. It is a waste product that replaces part of the Portland cement in concrete. Portland cement production requires strip mining limestone, crushing the limestone, and enormous amounts of energy to convert the limestone to cement. Fossil fumes are consumed and carbon dioxide is produced both by fuel combustion and limestone conversion.
Buildings are a major source of the pollution that causes urban air quality problems, and the pollutants that contribute to climate change. They account for 49 percent of sulfur dioxide emissions, 25 percent of nitrous oxide emissions, and 10 percent of particulate emissions, all of which damage urban air quality. Buildings produce 35 percent of the country’s carbon dioxide emissions the chief pollutant blamed for climate change.
There are many opportunities to make buildings cleaner. As just one example, if only 10 percent of homes in the U.S. used solar water-heating systems, we would avoid 8.4 million metric tons of carbon emissions each year.
Sun & Earth Construction uses quality materials with low embodied energy, while caring about the environment around us and building cost efficient homes.
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