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1. Hottest Year: Records for the hottest temperature were set around the world with the highest average global surface temperature since record-keeping began, according to four separate analyses. Records were shattered everywhere. Europe and Mexico had their warmest years ever, while Argentina and Uruguay had their second hottest years and Australia its third warmest after enduring all-time record heat in 2013. Africa and Asia also had above-average temperatures.
warm year
The following table lists the global combined land and ocean annually-averaged temperature rank and anomaly for each of the 10 warmest years on record. Chart credit: NOAA
“Warmer-than-average conditions were present across much of the world’s land and ocean surfaces during 2014,” the report said. “These contributed to a global average temperature that was the highest or joint highest since records began in the mid-to-late 1800s. Over land surfaces, Eurasia and western North America were particularly warm, while noticeable cold was felt in eastern North America, which suffered several Arctic cold-air outbreaks in early 2014. The frequency of warm extreme temperatures was above average for all regions apart from North America.”
2. Greenhouse Gas Emissions: Driving those temperature increases were all the major heat-trapping greenhouse gases, including carbon dioxide, methane and nitrous oxide, which reported record high atmospheric concentrations. Carbon levels at Mauna Loa stayed above 400 ppm from April through June, and globally the average was 397.2ppm. Methane concentrations rose as well, with an increase that’s bigger than the average annual increase of the past decade.
3. Sea Surface Temperature: The average sea surface temperature globally was the highest on record, with especially warm temperatures in the western Atlantic and central and northeast Pacific. While this didn’t drive an El Niño event in 2014, scientists expect one to arrive in 2015.
4. Ocean Temperature: The heat content of the ocean’s waters also set a record, reflecting the fact that the oceans absorb more than 90 percent of the heat trapped in the Earth’s atmosphere by greenhouse gases. As greenhouse gases rise, therefore, so do ocean temperatures.
Ocean heat content each year since 1993 compared to the 1993-2013 average (dashed line) from a variety of data sources. Exact estimates differ among data sets, but they all show the same upward trend. Graph adapted from Figure 3.7 in State of the Climate in 2014.
Ocean heat content each year since 1993 compared to the 1993-2013 average (dashed line) from a variety of data sources. Exact estimates differ among data sets, but they all show the same upward trend. Graph adapted from Figure 3.7 in State of the Climate in 2014.
5. Sea Level Rise: Sea levels are setting records too. Sea levels are now about 67 millimeters, or about 2.6 inches, higher than they were in 1993. Factors contribution to this rise include the melting of glaciers and other sea ice, the fact that water expands as it warms and melting land ice flowing out to sea.
Global sea level each year since 1993 compared to the 1993* average (dashed line). Graph adapted from Plate 1.1x in State of the Climate in 2014. Image credit: NOAA's State of the Climate report
(Click to enlarge) Global sea level each year since 1993 compared to the 1993 average (dashed line). Graph adapted from Plate 1.1x in State of the Climate in 2014.
6. Greenland Ice Melt: The Greenland ice sheet was above average in its rate for melt for 90 percent of the regular melt season. It hit a record low for August in how much of the sun’s energy is reflected off its surface. Melting darkens the ice sheet’s surface, making it less able to reflect the sun’s energy.
a) Map of Greenland Ice Sheet surface albedo for summer (June to August) 2014, relative to the summer average 2000-2011, b) Average surface albedo of the whole ice sheet each summer since 2000, and c) Average surface albedo of the ice sheet each August since 2000. Image courtesy: American Meteorological Society
a) Map of Greenland Ice Sheet surface albedo for summer (June to August) 2014, relative to the summer average 2000-2011, b) Average surface albedo of the whole ice sheet each summer since 2000, and c) Average surface albedo of the ice sheet each August since 2000. Image courtesy: American Meteorological Society
7. Antarctic Ice Melt: Antarctic sea ice set a different record—for highest sea ice extent, which has broken records three years running. One possible reason for that is changing wind patterns, scientists say. Without land to block it as in the Arctic, ice near land blows out to sea, exposing open water, which then freezes. While it might sound counterintuitive to the idea of a warming planet, it’s indicative of potentially climate change-driven atmospheric shifts.
originally posted by: alienjuggalo
a reply to: lostbook
Yeah but how long have records been kept? So what do they really know?
originally posted by: lostbook
originally posted by: alienjuggalo
a reply to: lostbook
Yeah but how long have records been kept? So what do they really know?
I'm pretty sure that Geologists have ways of measuring the Earth's temperature at differing times in its history.
The green line is TREE RING DATA. And THIS is the data that was used as a "proxy" to measure temperatures in the distant past. But if tree ring data obviously doesn't know the real temperature in the present, how can you say it knew what the temperatures were in the past? ESPECIALLY since THIS is the data they used to "prove" temperature has been rising?
Well, these guys are not stupid. They knew full well what all this meant, so what did they do?
They "hid the decline" and then bragged about it in their emails. It's a vivid smoking gun that has NEVER been adequately explained.
originally posted by: Grimpachi
a reply to: schuyler
The green line is TREE RING DATA. And THIS is the data that was used as a "proxy" to measure temperatures in the distant past. But if tree ring data obviously doesn't know the real temperature in the present, how can you say it knew what the temperatures were in the past? ESPECIALLY since THIS is the data they used to "prove" temperature has been rising?
Well, these guys are not stupid. They knew full well what all this meant, so what did they do?
They "hid the decline" and then bragged about it in their emails. It's a vivid smoking gun that has NEVER been adequately explained.
It has been explained and debunked hundreds of times on these boards and I know ou have taken part in some of those threads.
I will not go into it in depth again, but you can learn about it here. Clearing up misconceptions regarding 'hide the decline'
The thing that caught my attention is that you seem to think past climate is solely measured from tree ring samples from one local and you couldn't be any more missinformed.
They use many methods to determine past climate. Ice cores, Fossil pollen, Lake sediments, Ocean sediment cores, and tree ring width are a few methods.
There is an entire scientific field that is dedicated to the study of past climates and it is called Paleoclimatology. If you plan to argue against the findings from those in that field you should at the very least learn what it entails.
originally posted by: schuyler
originally posted by: lostbook
originally posted by: alienjuggalo
a reply to: lostbook
Yeah but how long have records been kept? So what do they really know?
I'm pretty sure that Geologists have ways of measuring the Earth's temperature at differing times in its history.
And that's not a bad thing. It's just different. And the fact is we may have to change. But let us not use this change as an excuse for more totalitarian government control, because that's the hidden agenda here.
originally posted by: JohnCruz
The truth is we have no idea what we are talking about in this arena. Our data has not been recorded long enough for us to make these statements. Based on my resources it is normal for the earth to cycle like this. as far as the co2 damaging our ozone we have had higher co2 in the past after a meteor strike. Do your homework