What's the difference between coal and overburden?

Coal


Definition:

  • (n.) A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal.
  • (n.) A black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter.
  • (v. t.) To burn to charcoal; to char.
  • (v. t.) To mark or delineate with charcoal.
  • (v. t.) To supply with coal; as, to coal a steamer.
  • (v. i.) To take in coal; as, the steamer coaled at Southampton.

Example Sentences:

  • (1) The biggest single source of air pollution is coal-fired power stations and China, with its large population and heavy reliance on coal power, provides $2.3tn of the annual subsidies.
  • (2) Photograph: AP Reasons for wavering • State relies on coal-fired electricity • Poor prospects for wind power • Conservative Democrat • Represents conservative district in conservative state and was elected on narrow margins Campaign support from fossil fuel interests in 2008 • $93,743 G K Butterfield (North Carolina) GK Butterfield, North Carolina.
  • (3) Nick Robins, head of the Climate Change Centre at HSBC, said: "If you think about low-carbon energy only in terms of carbon, then things look tough [in terms of not using coal].
  • (4) The fact that it is still used is regrettable yet unavoidable at present, but the average quantity is three times less than the mercury released into the atmosphere by burning the extra coal need to power equivalent incandescent bulbs.
  • (5) According to the International Energy Agency, 147m Indians will remain without electricity into 2030 under a business as usual scenario emphasising coal.
  • (6) My grandfather was a coal miner and Nana was rather plump and bossy.
  • (7) Shenhua Watermark Coal, a subsidiary of the Chinese state-owned Shenhua Group, is waiting for final approval from Hunt for a $1.2bn open-cut coalmine on the edge of the plains, a little more than three kilometres from Hamparsum’s property.
  • (8) Instead the textbook simply reads: "Traditional industries, such as shipbuilding and coal mining, declined ... during her premiership, there were a number of important economic reforms within the UK".
  • (9) In the US, electricity accounts for 39% of emissions – and 75% of that is contributed by coal.
  • (10) A survey was conducted in southern Illinois with a population of 46 coal miners and ex-coal miners ranging in age from 42 to 86 years.
  • (11) Australia’s greatest contribution to global warming is through our coal, exported and burned in foreign power stations.
  • (12) By its calorific value the mycelial waste is equal to brown coal or peat.
  • (13) The DECC believes clusters of coal and gas plants with CCS would offer efficiency because they could share the costs of building and operating pipelines to storage facilities, probably in old North Sea oil and gas fields.
  • (14) Its few remaining mines involve people digging coal out of hillsides.
  • (15) That stake in eight Indonesian coal mines represents 1GT of future carbon dioxide emissions, more than Germany’s annual output.
  • (16) This brings lads like 12-year-old Matthew Mason down from the magnificent studio his father Mark, from a coal-mining town ravaged by pit closures, lovingly built him in the back garden at Gants Hill, north-east London.
  • (17) This in turn meant frantic investment in German coal and lignite – 10 new plants are said to be opening – and a surge in Polish coal output.
  • (18) "It would be ridiculous to encourage shale gas when in reality its greenhouse gas footprint could be as bad as or worse than coal.
  • (19) We conclude that there appears to be no benefit from exceeding a concentration of 5% crude coal tar in yellow soft paraffin in the treatment of patients with psoriasis and that the plateau in the dose-response curve for the action of crude coal tar in psoriasis begins at a point between 1 and 5%.
  • (20) Engie, the owner of Rugeley coal-fired station in Staffordshire, which made the most recent closure announcement earlier this month, blamed low wholesale power prices as much as carbon taxes for its decision .

Overburden


Definition:

  • (v. t.) To load with too great weight or too much care, etc.
  • (n.) The waste which overlies good stone in a quarry.

Example Sentences:

  • (1) When each overburdened adviser has an average caseload of 168 people, it is virtually impossible for individuals to be given any specialised support or treatments tailored to particular needs.
  • (2) Routine surgical exploration or arteriography can be very expensive and time-consuming and can overburden available resources if used in all patients.
  • (3) The problem is the conflict between information and disinformation – particularly, in preventing overburdening web interfaces and search results with augmented content.
  • (4) A combination of HPV testing and repeated cytologic screening would provide reasonably sensitive screening for cervical neoplasia while limiting the use of colposcopic services, which are currently overburdened.
  • (5) Many junior faculty are overburdened with clinical demands and do not have a well-focused research agenda.
  • (6) What may seem like minor tweaks to make something more palatable to overburdened policymakers could actually have lasting implications, creating winners and losers on the global stage – we need to learn from the MDGs, scale up our ambitions and face inequity head-on.
  • (7) There was, for instance, a symbolically overburdened childhood moment, recalled by Christopher at Hay, in which he was sitting in the garden admiring stuff when he saw a shadow looming, a shadow that he claims was that of Peter wielding a rake.
  • (8) The author realizes that there is little motivation for frequently overburdened faculties and underfunded medical schools to undertake the needed changes; he describes various problems that challenge the existence of the health care system, including the increasing (and well-meaning) involvement in educational matters by legislators and bureaucrats.
  • (9) Such overburdening is implicated in caregiver burnout.
  • (10) The service system is overburdened and poorly coordinated.
  • (11) The telephone log method may provide a useful way of generating enough observations for single subject analyses without overburdening the patient with repeated testing.
  • (12) The cause of this change is most probably the reversibly impaired contractility of the heart muscle after fatigue of the left ventricle as a result of a certain degree of overburdening.
  • (13) I'm sure the nation's social workers, currently struggling as they are with overburdened case loads involving a variety of troubled, vulnerable individuals with a range of complex needs are slapping their heads as we speak.
  • (14) The general situation of pediatric care in Asturias is characterized by the imbalance between the two levels of care, with a high number of hospital beds and staff members, requiring a redistribution in number and functions, and a deficit in staff and material resources at the primary care level, with massified practices and overburdened care activities.
  • (15) In a small room off the tunnel at Wycombe’s ground, as a tea urn belched steam into the freezing January air, he bemoaned, in his characteristically sulky way, a recruitment policy that had left him overburdened with attacking players but bereft of defensive cover.
  • (16) To prevent overburdening of existing in center programs, expansion of training facilities statewide for home care dialysis is suggested.
  • (17) It is questioned whether the health care system can adequately respond to the health requirements of the many when resources are drained, health care providers are overburdened, and primary health care is fragmented because of AIDS.
  • (18) It has sometimes felt as though social workers are dodgy salesmen – or, more often, overburdened saleswomen – stressing the positives and skimming over the challenging, if entirely excusable, character traits of children they are trying to house.
  • (19) The data can be interpreted as demonstrating that the nursing staff is overburdened with administrative work.
  • (20) Cooperation of orthopaedists and specialists in sports medicine is the prerequisite of restricting possible negative sequelae of local and general overburdening.