Global warming and climate change can both refer to the observed century-scale rise in the average temperature of the Earth's climate system and its related effects, although climate change can also refer to any historic change in climate.
Although the day has been observed for centuries, its true origins are unknown and effectively unknowable.
The fady they established were scrupulously observed for centuries after the ruler's death.
The appearance of the so-called pink snow, which Arctic explorers have observed for centuries, is the result of a red algae that likes to bloom in the frozen water.
This biophysical phenomenon has been observed for centuries (Nollet, 1754) and studied intensively since the mid 1900s (e.g., see Sale and Hamilton, 1967).
It has been observed for centuries that physical activity maintains and improves health and well-being, however health-systems have done little to promote and support appropriate levels of physical activity, especially in groups with elevated cardiovascular risk [ 29].
Stunting has been observed for centuries, but it wasn't until 1973 that the current standard definition for the term was introduced by the nutritionist John Waterlow, from the London School of Hygiene and Tropical Medicine.
In common with naturally occurring sudden global temperature changes, scientists can explain the warming observed this century only by factoring in the large rise in CO2 emissions linked to human activity rather than volcanos.
Carl Sandburg called it "language that rolls up its sleeves, spits on its hands and goes to work," while A.P. Herbert called slang "language which is always taking its trousers off (and vaguely prancing in the street)." G.K. Chesterton, trousers on and sleeves rolled down, observed a century ago, "All slang is metaphor, and all metaphor is poetry".
Accounts of unusual sexual activities among penguins, observed a century ago by a member of Captain Scott's polar team, are finally being made public.
Since most GCMs do not simulate observed 20th century climate accurately at regional scales (Giorgi and Francisco 2000; Phillips and Gleckler 2006), we cannot compare the model projections directly with current observed data.
