megaton

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Related to megatonnes: gigaton, metric ton, Kilotonne, Metric tonnes

megaton

1. one million tons
2. an explosive power, esp of a nuclear weapon, equal to the power of one million tons of TNT

megaton

[′meg·ə‚tən]
(physics)
The energy released by 1,000,000 metric tons of chemical high explosive calculated at a rate of 1000 calories per gram, or a total of 4.18 × 1015 joules; used principally in expressing the energy released by a nuclear bomb. Abbreviated MT.
References in periodicals archive ?
basis, could remove 10 million vehicles from the road in 2025, eliminating 15 megatonnes
8 megatonnes in GHG could be saved by 2019, although output of GHG is still expected to rise by 31.
2] emissions rising from about 20 megatonnes in 1900 to 58 megatonnes by 1950, peaking at just above 130 megatonnes in 1979 to 1980, which means that S[O.
With an estimated 239 megatonnes of waste arisings, which is twenty-one per cent more than today, this scenario represents by far the worst vision of the future.
Table 2: Coverage and Targets, 2020 Canada Old and New Targets and the US ACESA Baseline Emissions 2020 Megatonnes Megatonnes Canada: Old Covered 329 Target (2006) Emissions -253 National 741 Emissions Canada: New Covered 329 Target Emissions -263 National 741 Emissions US: ACESA Covered 5,793 -4,823 Emissions National 7,492 Emissions Compliance Target Percent Percent Below Below 2005 2020 BAU Canada: Old Covered -20(2006) -23 Target (2006) Emissions National -11 -10 Emissions Canada: New Covered -17 -20 Target Emissions National -10 -9 Emissions US: ACESA Covered -17 -17 Emissions National -13 -13 Emissions Source: Author's calculations derived from CIMS, GEEM, and EIA models.
3) Indeed, Canada's increase in total aggregate greenhouse gas emissions from 1990 to 2007 was the highest among G8 nations, (4) rising from 596 megatonnes in carbon dioxide equivalents (C[O.
This represents some four megatonnes of extra CO2 emissions from Chinese coal-fired power plants every week.
More recently, the explosion of volcano Krakatoa in 1883 - which is still active - produced the equivalent of 200 megatonnes of TNT.
If everyone in the UK ate no meat for just one day a week, it's been calculated this would save 13 Megatonnes of C[O.
The government claims that the industrial emissions cap will reduce Canadian greenhouse gas emissions by 165 megatonnes by 2020 from their expected ("business-as-usual") level.
11,204 Megatonnes of oil equivalent Oil 35 Coal 25 Gas 21 Biomass & waste 10 Nuclear 6 Hydro 2 Other renewables 1 Note: Table made from pie chart.
Indeed, the baseline implies that the Government of Canada's target of a 20% absolute reduction in greenhouse gas emissions from 2006 levels by 2020 requires a 330 megatonnes reduction from the reference case projected emissions level of 940 megatonnes in 2020.