Sentence examples for global average sea level from inspiring English sources

Over the past century, global average sea level has risen by about 8 inches.

By 2100, conservative estimates place global average sea level rise at approximately 1m (3 feet), with a more significant rise of 2-3 meters (6-10 feet) possible.

Past IPCC assessments reported that the global average sea level rose by some 19 21 cm (7.5 8.3 inches) between 1901 and 2010 and that sea levels rose faster in the second half of the 20th century than in the first half.

It also predicted, again depending on a wide range of scenarios, that the global average sea level would rise 26 77 cm (10.2 30.3 inches) relative to the 1986–2005 average by 2100 for global warming of 1.5 °C, an average of 10 cm (3.9 inches) less than what would be expected if warming rose to 2 °C (3.6 °F) above preindustrial levels.

"We focus especially on Thwaites because sufficiently large retreat there could evacuate the entire central region of the West Antarctic ice sheet, perhaps raising global average sea level more than 3 m through that one outlet," Richard Alley, a glaciologist at Penn State University, said in an emailed comment on the study.

It also predicted, again depending on a wide range of scenarios, that by the end of the 21st century the global average sea level could rise by another 26 82 cm (10.2 32.3 inches) relative to the 1986–2005 average and that a rise of well over 1 metre (3 feet) could not be ruled out.

It is "very likely", the report adds, "that the mean rate of global averaged sea level rise was 1.7mm a year between 1901 and 2010, 2.0mm a year between 1971 and 2010 and 3.2mm a year between 1993 and 2010".

It included an estimate of global average sea-level rise in its executive summary, and that was based on two things: thermal expansion as warmer water takes up more space, and melting ice from glaciers and polar ice caps.

This will result in a global mean sea level rise by an average of 5 mm per year over the next 100 years.

Global mean sea level rose at an average rate of about 1.2 mm (0.05 inch) per year over much of the 20th century, with shorter terms during which the rise was significantly faster (5.5 mm [0.2 inches] per year during the period from 1946 to 1956).

In 2017, global mean sea level was 77mm (or 3in) above the 1993 average, according to the US National Oceanic and Atmospheric Administration.