Sentences with phrase «average sea levels around»

Any reforms to come from the process, starting next week, would affect about 62 percent of New York state's population, the proportion estimated to reside now in areas that could be hard hit as rising land and ocean temperatures raise average sea levels around the globe.

Not exact matches

Around 3 million years ago, when temperatures were just 1 to 2 °C higher than the average of the past couple of millennia before humans began warming the climate, sea level was at least 25 metres higher than present.

But even though the sea level around the world will rise by an average of 80 cm, the sea level in the Gulf of Bothnia in Finland is expected to fall by 10 cm due to land uplift.

Here we have CO2 levels around 400 ppm, global average temperature about 2 or 3 degrees higher, and sea levels 25 to 35 meters higher (think ten story building).

As the ice melted, starting around 20 000 years ago, sea level rose rapidly at average rates of about 10 mm per year (1 m per century), and with peak rates of the order of 40 mm per year (4 m per century), until about 6000 years ago.»

Current sea level rise underestimated: Satellites show recent global average sea level rise (3.4 millimeters per year over the past 15 years) to be around 80 percent above past I.P.C.C. predictions.

This decade - long satellite altimetry data set shows that since 1993, sea level has been rising at a rate of around 3 mm yr — 1, significantly higher than the average during the previous half century.

For the planet's sea level, this would mean over a half - foot rise averaged around the globe, in comparison with average sea levels from 1986 to 2005.

It notes that: 80 % of carbon dioxide emissions come from only 19 countries; the amount of carbon dioxide per US$ 1 GDP has dropped by 23 % since 1992, indicating some decoupling of economic growth from resource use; nearly all mountain glaciers around the world are retreating and getting thinner; and sea levels have been rising at an average rate of about 2.5 mm per year since 1992.

Hence, at any location around or within the oceans, the observed sea level trend can differ significantly from the global average.

It is arguably one of the most advanced of the seven in its impacts, with a 2011 GRL report putting its warming effect as equivalent to around 30 % of atmospheric anthro - CO2, and the recent report putting albedo loss from arctic sea - ice decline since»79 as providing a forcing equivalent on average to that from 25 % of the anthro - CO2 levels during the period.

Global average sea levels have risen by around 3.2 mm per year since satellite measurements began in 1993, the report says, with sea levels around 67 mm higher in 2014 than they were in 1993.

This could raise average global sea level by up to 15 feet, inundating highly populated coastal areas around the world.

However, it is a rather poor choice, since sea level rise around Tuvalu is faster than the global average (Figure 2).

On average, sea levels around the world rise 3.1 centimetres every ten years.

For example, the melting of the Greenland ice sheet broke previous records in 2002, 2005, and 2007, and seasonal melting from 1996 to 2007 was above average compared with the 1973 - 2007 period.10, 11 The melting of the Greenland ice sheet contributed around 0.02 inch (0.6 millimeter) to global sea - level rise in 2005 — more than double the 1996 contribution.4 From 1993 to 2003 the average rate of sea - level rise increased to about 0.12 inches (3.1 millimeters) per year.12 That means that in 2005 Greenland could have contributed 19 percent of the average annual global sea level rise rate.

They found that when temperatures hovered near, or just above, modern day global averages, sea levels rose by around 20 feet.

None of these could have been caused by an increase in atmospheric CO2, Model projections of warming during recent decades have greatly exceeded what has been observed, The modelling community has openly acknowledged that the ability of existing models to simulate past climates is due to numerous arbitrary tuning adjustments, Observations show no statistically valid trends in flooding or drought, and no meaningful acceleration whatsoever of pre-existing long term sea level rise (about 6 inches per century) worldwide, Current carbon dioxide levels, around 400 parts per million are still very small compared to the averages over geological history, when thousands of parts per million prevailed, and when life flourished on land and in the oceans.