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TON. Twenty hundred weight, each hundred weight being one hundred and twelve pounds avoirdupois. See act of congress of Aug. 30, 1842, c. 270, s. 20.

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Between 1990 and 2006, total Canadian GHG emissions rose from 592 megatonnes to 721 megatonnes, and industry consistently accounted for about 40 percent of all Canadian emissions (excluding those from electricity generation).
Numbers for emission levels are in Megatonnes (Mt) of C[O.
the leading innovation partner to organizations worldwide, today announces that 24 winners were selected by the CCEMC (Climate Change and Emissions Management Corporation) Grand Challenge in round-one of their Grand Challenge to achieve a net reduction of greenhouse gases by 1 megatonne per year through novel approaches to converting carbon from a liability to an asset in Alberta, Canada.
Table 149: Canada, Reduction in GHG Emissions in Megatonnes after Deploying Energy Efficiency Improvements, 2010-2015 124
Regarding large industry and industry related projects, the Government's Action Plan intends to achieve the following: (i) an absolute reduction of 150 megatonnes in greenhouse gas emissions by 2020 by imposing mandatory targets; and (ii) air pollution from industry is to be cut in half by 2015 by setting certain targets.
Total annual emissions for large industrial emitters has been capped at 55 megatonnes, emission reduction targets have been set at 15 per cent compared to business as usual, and the cost of a carbon credit has been limited to $15 per tonne.
The closure has eliminated more than 30 megatonnes of annual GHG emissions, equivalent to taking seven-million vehicles off our roads.
The explosive core of the warhead would be a massive thermonuclear bomb -- perhaps as big as 100 megatonnes, almost twice as big as any bomb ever tested.
II-15 Table 5: Surging Datacenter Electricity Consumption Accelerates DCIM Adoption as a Tool to Reduce Carbon Footprint: World Datacenter Electricity Consumption (In Terawatt-hour (TWh)) for the Years 2005, 2010, 2015, & 2020 (includes corresponding Graph/Chart) II-16 Table 6: Expanding Datacenter Carbon Footprint & Enforcement of Regulatory Emission Reporting Strengthen the Business Case for DCIM: World Data Center Co2 Emissions (In Megatonnes (Mt)) for the Years 2011-2015 (includes corresponding Graph/Chart).
The marketing firm asserts that the region could save up to five megatonnes of carbon dioxide emissions annually by implementing LED lighting systems.