Temperature Anomalies over land and over ocean, 1950-2017. Graphic: NASA / GISS

By Joe Romm
22 August 2017

(ThinkProgress) – Global temperatures are rising faster on the land, where we live, than the oceans, where we don’t, NASA charts reveal. Since scientists have long predicted this trend and say it will continue, it’s worth a closer look.

Let’s start with the long-term global warming trend. According to NOAA, “Since 1880, surface temperature has risen at an average pace of 0.13°F (0.07°C) every 10 years, for a net warming of 1.71°F (0.95°C).”

But the warming is not evenly distributed: “Over this 136-year period, average temperature over land areas has warmed faster than ocean temperatures: 0.18°F (0.10°C) per decade compared to 0.11°F (0.06°C) per decade.” So over the entire record, the land is warming nearly 70 percent faster than the oceans.

But the warming is also speeding up. Over the last 45 years, surface temperature has been rising at an average rate of around 0.3° F per decade — more than double the rate over the whole 135-year period. This speed up was also predicted. After all, emissions of CO2, the most important heat-trapping greenhouse gas, have increased by a factor of six since 1950 — and the rise of overall CO2 levels has sped up.

The disparity between the rate of land and ocean warming has also gotten bigger.  NASA Goddard Institute for Space Studies (GISS) recently posted some charts that show just how much faster it has been warming in recent decades — and how much the  disparity has grown. [more]

Stunning NASA chart shows how fast the ground beneath our feet is heating up



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