Natural Gas Prices and Demand from EIA forecasts

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Natural gas prices and demand from EIA Annual Energy Outlook 2009, 2010

This is a combination of data from the EIA Annual Energy Outlook 2009 and 2010. The price data for 2009 were given in 2007 $ and were scaled to account for inflation. The demand curve for 2009 shows an inflection at years past 2025, which is not reflected in the AEO 2010 data. The term "quad" refers to quadrillion (10¹⁵) BTU). Each quadrillion BTU of natural gas is equivalent to approximately 1000 billion standard cubic feet of gas.

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2007 US greenhouse gas emissions: cement, limestone, natural gas, and other industries

The Energy Information Administration (EIA) has released a report on U.S. greenhouse gas (GHG) emissions in 2007 (Note: ftp link).

What attracted my attention was the "other sources" category, of which cement contributed ~46 million metric tons (MMT) of CO2/year in 2007 (~0.8% of total U.S. greenhouse gas emissions). The next highest contributor was lime-making, which involves limestone calcination. Aluminium (3.8 MMT) production contributes much lesser to U.S. GHG emissions compared to cement production. Additionally, iron and steel production likely contributes ~45 MMT CO2/year. On the other hand, recent high-gas prices partly contributed to higher natural gas production (and higher CO2 co-produced from natural gas). CO2 emissions from natural gas-flaring in the U.S. were not projected to change from 2006 (7.8 MMT CO2/year). In the figure, the values for natural gas show a spike in 1995, from my data it appears to be due to significantly higher natural gas flaring, than CO2 production from natural gas.

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