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This is a list of the largest known epidemics and pandemics caused by an infectious disease in humans. Widespread non-communicable diseases such as cardiovascular disease and cancer are not included. An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time; in meningococcal ...
The world's exclusive economic zones by boundary types and EEZ types. An exclusive economic zone (EEZ), as prescribed by the 1982 United Nations Convention on the Law of the Sea, is an area of the sea in which a sovereign state has exclusive rights regarding the exploration and use of marine resources, including energy production from water and wind.
Contents. Geological history of oxygen. O 2 build-up in the Earth's atmosphere. Red and green lines represent the range of the estimates while time is measured in billions of years ago ( Ga ). Stage 1 (3.85–2.45 Ga): Practically no O 2 in the atmosphere. Stage 2 (2.45–1.85 Ga): O 2 produced, but absorbed in oceans and seabed rock.
Artist's concept of the Earth5–7.5 billion years from now, when the Sunhas become a red giant. While the future cannot be predicted with certainty, present understanding in various scientific fields allows for the prediction of some far-future events, if only in the broadest outline. [1][2][3][4]These fields include astrophysics, which ...
Published estimates for the 1st century ("AD 1") suggest uncertainty of the order of 50% (estimates range between 150 and 330 million). Some estimates extend their timeline into deep prehistory, to " 10,000 BC", i.e., the early Holocene, when world population estimates range roughly between 1 and 10 million (with an uncertainty of up to an ...
The UK has committed to carbon neutrality by 2050. The target for 2030 is a 68% reduction compared with 1990 levels. The UK has been successful in keeping its economic growth alongside taking climate change action. Since 1990, the UK’s greenhouse gas emissions have reduced by 44% while the economy has grown by around 75% up until 2019.
Over time, this developed into the concept that they were all part of a much longer ice age. [citation needed] The concept that the Earth is currently in an ice age that began around 30 million years ago can be dated back to at least 1966. As a geologic time period, the Late Cenozoic Ice Age was used at least as early as 1973.
The United States Naval Observatory states "the Equation of Time is the difference apparent solar time minus mean solar time ", i.e. if the sun is ahead of the clock the sign is positive, and if the clock is ahead of the sun the sign is negative. [6] [7] The equation of time is shown in the upper graph above for a period of slightly more than a ...