US energy-related CO2 emissions increase 1.6% in 2007: EIA



Washington (Platts)--20May2008

US energy-related CO2 emissions rose 1.6% in 2007, driven by a 2.2%
increase in GDP and weather patterns that boosted energy consumption for both
heating and cooling, the US Energy Information Administration said on Tuesday.

In a preliminary report, the agency said energy-related CO2 emissions
rose by 96 million metric tons to 5.984 billion mt last year from 5.888
billion mt in 2006.

The report, which contained preliminary data, also found that natural
gas-related emissions rose 6.6%, or 77 million mt, while coal-related
emissions rose by 1.1%, or 23 million mt. Petroleum emissions, the report
said, fell 3 million mt, or 0.1%.

EIA added while electricity generation rose 2.5% last year, carbon
emissions from the sector rose by 70.8 million mt, or 3%, indicating a higher
"carbon intensity of generation in 2007 compared to 2006."

Generators' natural gas-related emissions increased by 35.6 million mt,
or 10.5%, while coal-related emissions rose 35.3 million mt, or 1.8%.

Non-carbon generation fell by 15 billion kWh in 2007, EIA said, adding
that a 40-billion kWh decline in hydropower generation offset increases in
wind and nuclear generation of 6 billion kWh and 19 billion kWh respectively.

The report said that residential CO2 emissions rose by 52 million mt, or
4.4%, in 2007, with heating-degree days up 6.7% and cooling-degree days up
2.6%, causing a 3.9% increase in the sector's electricity-related emissions.

EIA said CO2 emissions rose by 44 million metric tons, or 4.3%, above
2006 levels, with electricity accounting for 78% of the sector's emissions. In
addition, the agency said energy-related industrial emissions of CO2 declined
by 0.1% in 2007, largely because of a 1.7% decline in US industrial output.

The report also said US carbon intensity -- defined as carbon dioxide
emissions per unit of economic output -- continued to improve last year,
falling by 0.5%. Energy-related CO2 emissions rose by 1.6%, while economic
growth was 2.2%, EIA added.