Navigation Links
Medieval diaries aid scientists ascertain increase in hot spots due to global warming

The temperature of the northern hemisphere has increased over a larger area in the last century than at any time in the past millennium a report published in Science reveals this week.

The study finds that the number of 'hot spots' has increased dramatically in the Northern Hemisphere in the last century compared to the past 1200 years - adding to the growing evidence of wide-scale global warming.

Dr Tim Osborn and Prof Keith Briffa, of the Climatic Research Unit team at the University of East Anglia, analyzed thermometer measurements of temperature from 1856 onwards to establish the spatial extent of recent warming, and compared it with evidence from as far back as AD 800 (from tree rings, ice cores and shells).

The study found evidence for periods of significant warmth (890 - 1170) in the Northern Hemisphere during medieval times and for clearly colder periods (1580 - 1850) during the so-called "Little Ice Age".

Their key conclusion was that the 20th century stands out as having unusually widespread warmth, compared to all of the natural warming and cooling episodes during the past 1,200 years.

The research team gathered climate change data from a number of regions in the Northern Hemisphere especially:

Long life evergreen trees growing in Scandinavia, Siberia and the Rockies, which had been cored to reveal the patterns of wide and narrow tree rings over time - wider rings relating to warmer temperatures.

Ice from cores drilled in the Greenland ice sheets revealed which years were warmer than others by the chemical composition of the ice.

They also used a record developed from diaries of people living in the Netherlands and Belgium over the past 750 years that revealed for example the years when the canals froze.


'"/>

Source:University of East Anglia


Page: 1

Related biology news :

1. Wisconsin scientists grow critical nerve cells
2. UCSB scientists probe sea floor venting to gain understanding of early life on Earth
3. UAB scientists discover the origin of a mysterious physical force
4. Fox Chase Cancer Center scientists identify immune-system mutation
5. Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.
6. U-M scientists find genes that control growth of common skin cancer
7. UCLA scientists transform HIV into cancer-seeking missile
8. RNA project to create language for scientists worldwide
9. Carnegie Mellon scientists develop tool that uses MRI to visualize gene expression in living animals
10. To control germs, scientists deploy tiny agents provocateurs
11. Leprosy microbes lead scientists to immune discovery
Post Your Comments:
(Date:9/30/2014)... to tetrachloroethylene (PCE) in drinking water may increase ... to a new study led by a Boston ... study, published in the journal Environmental Health ... pregnancies among 1,766 women in Cape Cod, Ma., ... to the early 1980s by the installation of ...
(Date:9/30/2014)... Fish can live in almost any aquatic environment on ... up many species are pushed to the limit. The ... could prove critical for how different species cope in ... the University of Gothenburg, published in the scientific journal ... Climate change continues apace thanks to increasing levels of ...
(Date:9/30/2014)... N.C. -- Pollution in urban and farm runoff in ... new study finds. , The study, published Tuesday ... that nitrogen in the runoff ends up in algae ... on the animals, eyes, flippers and internal organs. , ... the National Oceanic and Atmospheric Administration (NOAA) conducted the ...
Breaking Biology News(10 mins):Contaminated water linked to pregnancy complications, BU study finds 2Shape up quickly -- applies to fish, too! 2Pollution linked to lethal sea turtle tumors 2Pollution linked to lethal sea turtle tumors 3
... benefits are returned for every dollar invested installing toilets for ... UN Millennium Development Goal (MDG) for sanitation. ... prerequisite to the goals of reducing global poverty. Achieving ... people without access to a toilet by 2015 would ...
... — Robots are fluent in their native language of 1 ... imprecise nature of human language. While scientists are making slow, ... responds to speech, gestures and body language, a more straightforward ... homes sooner. A team of researchers led by Charlie ...
... color is separate from that used to detect motion, ... York Universitys Center for Developmental Genetics and in the ... Wrzburg. The findings, which appear in the latest issue ... run counter to previous scholarship that suggested motion detection ...
Cached Biology News:Sanitation investment in poor countries would yield $9-to-1 benefits in productivity, health: UN 2Sanitation investment in poor countries would yield $9-to-1 benefits in productivity, health: UN 3Sanitation investment in poor countries would yield $9-to-1 benefits in productivity, health: UN 4Sanitation investment in poor countries would yield $9-to-1 benefits in productivity, health: UN 5Robot fetches objects with just a point and a click 2Robot fetches objects with just a point and a click 3Robot fetches objects with just a point and a click 4Scientists find color vision system independent of motion detection 2
(Date:10/1/2014)... The participants committed to not only creating ... own time adjusting, tweaking and testing virtual models and ... for judging. , “I enjoyed being involved as a ... “The entries showed a commendable range exploring the technical ... print medium and the creativity of the contestants.” , ...
(Date:10/1/2014)... 2014 In response to its ... address sales, training and consumer engagement challenges, ... mobile applications to turn their clients’ visions into ... customized mobile app creations, are now featured on ... partnership with Toyota, StudioPMG created a robust cross-platform ...
(Date:10/1/2014)... 30, 2014 Award winning unified ... announces four new-hosted collaboration bundles that combine next ... quality conferencing experiences for low, flat rate fees. ... from, businesses have optimized solutions to meet their ... include audio only minutes (1K, 5K, 10K increments) ...
(Date:10/1/2014)... (PRWEB) October 01, 2014 TeselaGen ... National Science Foundation to expand their bioCAD/CAM software suite, ... and modify DNA. The Small Business Innovation Research Phase ... “j5” technology under exclusive license from the Lawrence Berkeley ... BioEnergy Institute , an LBNL laboratory that develops alternative ...
Breaking Biology Technology:Array Architects Challenges Staff to Create with 3D Printer 2Digital Agency Studio PMG Launches New Case Studies on Website 2SoundConnect Launches New Audio, Web and Video Bundles 2TeselaGen Receives $750k NSF SBIR Phase II Award 2TeselaGen Receives $750k NSF SBIR Phase II Award 3
... Mass., Oct. 10 Microtest has announced the,availability ... for Biological,Products: Partnering With a Contract Lab." ... virus,contamination at many levels, from raw materials to ... A proper testing,program is essential to ensure the ...
... leading,management consulting firm specializing in the pharmaceutical and biotech,industries, ... of the best,places to work in the Research Triangle ... ranking third among midsize companies. The award,was presented to ... to Work luncheon and awards ceremony on September 27, ...
... Fourth Fourth Fiscal Fiscal ($ in millions) ... 2007 ... $364 $212 $2,807 $1,793 Soybean seed and traits ... 58 52 319 376 ...
Cached Biology Technology:Microtest Offers Free White Paper: 'Virus Testing for Biological Products: Partnering With a Contract Lab' 2Campbell Alliance Named 'Best Place to Work' by Triangle Business Journal 2Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 2Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 3Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 4Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 5Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 6Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 7Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 8Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 9Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 10Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 11Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 12Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 13Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 14Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 15Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 16Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 17Monsanto Sees Record Sales in Fiscal Year 2007; Seeds and Traits Business Contributes to Strong Fourth Quarter and Year-End Results 18
... series of refrigerated cold traps offers a ... low volatility/aqueous solvents or high volatility solvents. ... vacuum concentrators/centrifugal evaporators. Also used for maintaining ... as used in electron microscopes. Can be ...
... Refrigerated Vapor Trap is specifically designed ... solvents such as DMSO and DMF ... constant temperature refrigeration system set at ... conditions for DMSO, while completely eliminating ...
96 Well Plate Sterile, RE bottom; consistent medium binding affinity for hydrophobic complexes and proteins....
Thermo Forma provides an array of accessory Racks for the Cryo/CryoPlus 16" Diameter storage system. To maximise inventory capacity a Jumbo Arrowhead configuration is recommended. You may choose betw...
Biology Products: