The symbol mt (militon) is the same as a kilogram and could possibly
be interpreted as such (oops!)
On 23 Sep 2009, at 13:00, John M. Steele wrote:
The EPA will require reporting of greenhouse gas emissions beginning
2010 from major sources, which are those emitting over 25000 metric
tons (CO2 equivalent) of several listed greenhouse gases. We can
all be happy that they are using metric measure but sad that they
butcher the symbol, using "mtCO2e"
http://yosemite.epa.gov/opa/admpress.nsf/d0cf6618525a9efb85257359003fb69d/194e412153fcffea8525763900530d75!OpenDocument
http://www.epa.gov/climatechange/emissions/ghg_faq.html