Articles Tagged "How About That!"
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Monday, March 11th 2013, 8:14 PM EDT
The world's tropical forests are less likely to lose biomass, or plant material, this century due to the effects of global warming than previously thought, scientists said in a paper published in the journal Nature Geoscience on Sunday.
This adds to growing evidence that rain forests might be more resilient to the effects of climate change than feared....
...In 2009, a group of British scientists said that 20 to 40 percent of the Amazon could die off within 100 years if global temperatures rose by 2 degrees Celsius, and 85 percent would be lost if temperatures rose by 4 degrees, which is seen as increasingly likely.
But a study last month said the Amazon rain forest was less vulnerable to dying off because carbon dioxide also acts as an airborne fertilizer.
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views 30,464
Saturday, February 23rd 2013, 6:33 AM EST
Pennsylvania's environmental protection chief found himself on the hotseat on climate change this week during legislative hearings on his agency's budget.
In hearings before the House and Senate appropriations committees, Democratic lawmakers pressed DEP Secretary Michael Krancer on the issue of climate change, specifically did he believe it was real?
At the House hearing on Wednesday, Rep. Greg Vitali (D., Delaware) asked Krancer whether he agreed with the following statement from a National Academy of Sciences report:
Climate change is occurring, is caused largely by human activities, and poses significant risks for–and in many cases is already affecting–a broad range of human and natural systems.
“It is a compound statement,” he said. ”I’d have to study it and look at it myself.”
Krancer later clarified his position in an interview with StateImpactPA, a public radio project focusing on natural gas drilling and the environment.
views 15,670
Thursday, February 21st 2013, 3:56 AM EST
The phase relation between atmospheric carbon dioxide and global temperature
Abstract
Using data series on atmospheric carbon dioxide and global temperatures we investigate the phase relation (leads/lags) between these for the period January 1980 to December 2011. Ice cores show atmospheric CO2 variations to lag behind atmospheric temperature changes on a century to millennium scale, but modern temperature is expected to lag changes in atmospheric CO2, as the atmospheric temperature increase since about 1975 generally is assumed to be caused by the modern increase in CO2. In our analysis we use eight well-known datasets: 1) globally averaged well-mixed marine boundary layer CO2 data, 2) HadCRUT3 surface air temperature data, 3) GISS surface air temperature data, 4) NCDC surface air temperature data, 5) HadSST2 sea surface data, 6) UAH lower troposphere temperature data series, 7) CDIAC data on release of anthropogene CO2, and 8) GWP data on volcanic eruptions. Annual cycles are present in all datasets except 7) and 8), and to remove the influence of these we analyze 12-month averaged data. We find a high degree of co-variation between all data series except 7) and 8), but with changes in CO2 always lagging changes in temperature. The maximum positive correlation between CO2 and temperature is found for CO2 lagging 11–12 months in relation to global sea surface temperature, 9.5–10 months to global surface air temperature, and about 9 months to global lower troposphere temperature. The correlation between changes in ocean temperatures and atmospheric CO2 is high, but do not explain all observed changes.
Highlights
► Changes in global atmospheric CO2 are lagging 11–12 months behind changes in global sea surface temperature. ► Changes in global atmospheric CO2 are lagging 9.5–10 months behind changes in global air surface temperature. ► Changes in global atmospheric CO2 are lagging about 9 months behind changes in global lower troposphere temperature. ► Changes in ocean temperatures explain a substantial part of the observed changes in atmospheric CO2 since January 1980. ► Changes in atmospheric CO2 are not tracking changes in human emissions.
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views 39,722
Monday, February 18th 2013, 7:41 AM EST
Russia and China blocked efforts last Friday to have climate change recognised as an international security threat by the UN Security Council (UNSC).
The council met in New York to discuss the potential effects of global warming, but according to Bloomberg the two permanent members objected to it being a ‘formal session’.
Despite the participation of UN Secretary-General Ban Ki-moon this meant the session – planned by Pakistan and the United Kingdom – had few political implications.
China, Russia, India and more than 100 developing countries oppose climate becoming a UNSC issue as the council does not operate under the principles of Common But Differentiated Responsibility, which underpins the UN climate talks.
They are concerned that securitizing the issue would place a greater burden on poorer nations with large greenhouse gas emissions to take action.
Click source to read FULL report from Ed King
views 12,440
Thursday, February 7th 2013, 8:15 AM EST
(Reuters) - The Amazon rainforest is less vulnerable to die off because of global warming than widely believed because the greenhouse gas carbon dioxide also acts as an airborne fertilizer, a study showed on Wednesday.
The boost to growth from CO2, the main gas from burning fossil fuels blamed for causing climate change, was likely to exceed damaging effects of rising temperatures this century such as drought, it said.
"I am no longer so worried about a catastrophic die-back due to CO2-induced climate change," Professor Peter Cox of the University of Exeter in England told Reuters of the study he led in the journal Nature. "In that sense it's good news."
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views 31,056
Monday, February 4th 2013, 5:58 AM EST
Click source to read FULL report from the BBC
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Monday, January 28th 2013, 9:51 AM EST
Probably I am not the only one who has been wondering about the apparent contradictions that arise from the various climate positions. Meteorologists claim that global warming has made a slow-down and describe the current epoch as cooler. Hence, temperatures do not seem to be in line with the predictions of the greenhouse theory. At the same time, others, like the World Bank in its November report, stress that the situation is worse than ever: emissions have increased and a temperature rise of four degrees is predicted for this century.
How should we interpret these contradictions? Measured temperatures have been commonly understood as hard facts in the past. The fact that temperatures have not significantly increased during the first decade of this century can easily be checked by anyone. The conclusions that we should draw from this are a mystery, however. Changes in global temperatures could also be considered features of natural climate variability. The climate has always been changing at regular intervals.
Therefore, when one implies that the situation is worse than ever, one does not refer to empirically observed temperatures, but to the greenhouse theory. As a matter of fact, one interprets under the premises of the theory. Because the theory assumes that CO2 emissions cause a rise in temperatures, and as CO2 emissions have increased exponentially and much more rapidly than what was initially assumed, the conclusion is that temperatures will indeed rise. Even if they won’t now, some day they will for sure. The situation is bad, or at least it will become bad.
views 16,231
Sunday, January 20th 2013, 4:29 PM EST
Great Headline from the BBC, click source for more:)
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Monday, January 7th 2013, 4:47 PM EST
A new paper published in the Journal of Climate examines landfalling tropical cyclones along the eastern Pacific coast between the 16th and 20th centuries and finds the most persistent cycle lasted ~ 12 years and coincided with the ~11-12 year solar cycle.
Abstract
Numerous studies have been conducted to document long term trends in tropical cyclone (TC) activity. However, the eastern Pacific has not received as much attention as other basins. Here we attempt the identification of TC formation in the Mexican eastern Pacific ocean before 1950. Using bibliographical and historical file consultation, we constructed a catalog of events related to intense storms and possible TCs that made landfall in the Mexican Pacific coasts. Between 1536 and 1948 we found a total of 119 events related to TCs. Then, using the Saffir-Simpson scale and the climatology of the region as the criteria to evaluate each event, we found 85 TCs. Furthermore, we constructed a historical time series of TCs between 1701 and 2010. The spectral analysis showed periodicities of ~2.6, 4, 5, 12, 16, 39 and 105 years, that coincide with some large-scale climatic phenomena and also with solar activity. In particular, the ~12-year cycle is the most persistent periodicity in our study.
H/T
hockeyschtick.blogspot.co.uk
Click source for FULL paper
ClimateRealists.com Needs You
views 14,317
Monday, January 7th 2013, 9:25 AM EST
Scientists are to launch an experiment which could allow them to predict earthquakes before they happen and potentially save hundreds of thousands of lives.
They believe a rise in static electricity below the ground could be a reliable indicator that a quake is imminent.
Tom Bleier, a satellite engineer with QuakeFinder, has spent millions of dollars putting specialist measuring equipment- magnetometers - along fault lines in California, Peru, Taiwan, and Greece
The instruments are sensitive enough to detect magnetic pulses from electrical discharges up to 10 miles (16 kilometers) away, which could give people enough time to get to safety before a quake strikes.
views 17,308
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