Sentence examples for estimates of coal from inspiring English sources

Variances about the estimates of coal bed thickness at each grid location were compared among the three datasets.

Sonic travel time logging of exploration boreholes is routinely used in Australia to obtain estimates of coal mine roof rock strength.

But as Congress considers billions of dollars in aid for projects to make gasoline and diesel substitutes from coal, and to build coal-fired plants that would capture their own carbon emissions, the study said that estimates of coal reserves were unreliable.

His estimates of coal production follow a similar pattern.

"This is old news," says Ranping Song, an official with the Global Climate Program of the World Resources Institute (WRI) in Washington, D.C. Song says that last February, the National Bureau of Statistics of China released preliminary revised estimates of coal consumption for 2013 and 2014 along with indications that data for prior years might also be low.

However, the new estimate is consistent with the trend toward decreased estimates of world coal reserves published by the World Energy Council and a 2007 assessment by the research council of the US National Academy of Sciences that US coal reserves have been significantly overestimated.

At the annual December meeting of the American Geophysical Union (AGU) in San Francisco, Professor David Rutledge from the California Institute of Technology re-examined estimates of world coal inventories.

Using International Energy Agency estimates of world coal reserves, the group said that burning just 26% of the reserves would break the global "carbon budget", lifting temperatures above the 2C threshold which has been adopted as a goal for the UN climate talks.

The International Energy Agency IEAa), a think-tank funded by power-hungry countries, estimates that consumption of coal will increase by 71% between 2004 and 2030.

There were graphs showing parabolic curves of population and coal consumption shooting upwards, and charts showing estimates of woefully inadequate coal reserves.

An estimated 200 billion tons of coal are estimated to lie underground in the state of Illinois.