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:9/21/2014)... dioxide emissions, the main contributor to global warming, are set ... of 40 billion tonnes. , The 2.5 per cent projected ... Carbon Project, which is co-led in the UK by researchers ... University of East Anglia and the College of Engineering, Mathematics ... comes ahead of the New York Climate Summit, where world ...
(Date:9/21/2014)... developed a protein therapy that disrupts the process that ... sites, travel through the blood stream and start aggressive ... known as metastasis, can cause cancer to spread with ... succumb to cancer fall prey to metastatic forms of ... bioengineering who describes a new therapeutic approach in ...
(Date:9/19/2014)... the sake of fairness per se but in order ... Frans de Waal, PhD, and Sarah Brosnan, PhD, co-authors ... is defined as a negative reaction to unequal outcomes. ... , Their conclusion comes after the co-authors reviewed more ... it is the evolution of forestalling partner dissatisfaction with ...
Breaking Biology News(10 mins):CO2 emissions set to reach new 40 billion ton record high in 2014 2CO2 emissions set to reach new 40 billion ton record high in 2014 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 2Stanford researchers create 'evolved' protein that may stop cancer from spreading 3Stanford researchers create 'evolved' protein that may stop cancer from spreading 4Evolution of responses to (un)fairness 2Evolution of responses to (un)fairness 3
... New research shows that nearly 1 in 5 cases of ... are caused by not one but multiple strains of the ... of Minnesota Medical School report their findings today in the ... journal published by the American Society for Microbiology. "Koch,s ...
... of researchers led by Jeffrey Peng, assistant professor of ... is using Nuclear Magnetic Resonance (NMR), to move drug ... drugs and their targets. The research, which was ... contributes to the growing attention given toward the shape-shifting ...
... Spanish . , Researchers at the Centre ... the Universidad de Kentucky (USA), have discovered a new way ... pathogen agents responsible for transmissible spongiform encephalopathies or TSEs) by ... control prion disease in deer, which has become an epidemic ...
Cached Biology News:Unexpectedly high rate of multiple strains in fungal infection 2Nuclear magnetic resonance aids in drug design 2Researchers embark on work to control the prion epidemic affecting deer in the USA 2Researchers embark on work to control the prion epidemic affecting deer in the USA 3
(Date:9/19/2014)... is rarely simple. From crop yields to disease risks, ... those considered "complex traits." Just as for heightthe textbook ... particular human disease are shaped by multiple genetic and ... involved. To track down such genes, geneticists typically mate ... large mouse and a small mouseand then study their ...
(Date:9/19/2014)... 19, 2014  An entire month is dedicated to ... – Charcot-Marie-Tooth disease (CMT) – a debilitating neuromuscular disease ... muscle atrophy, weakness, and foot and hand deformities. CMT ... worldwide. CMT is a progressive disease, and over time ... mobility devices such as leg braces, wheelchairs and scooters ...
(Date:9/19/2014)... Florida , September 19, 2014 ... release latest developments, patents and results of studies and ... Eli Lilly and Company (NYSE: LLY ), ... Corporation (NASDAQ: CELG ) and Arena Pharmaceuticals ... a leader in developing prodrug therapeutics for the treatment ...
(Date:9/19/2014)... , September 19, 2014 , ... European Society for Paediatric Endocrinology (ESPE) Meeting  ... and medical research in the field of growth  , ... Darmstadt, Germany , today announced the ... for 2014. The awards were announced during a Satellite ...
Breaking Biology Technology:Want to link genes to complex traits? Start with more diversity 2September is Charcot-Marie-Tooth (CMT) Awareness Month - Scheduled events, activities and important partnerships announced throughout the month! 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3
... ST. JOSEPH, Mich., March 24 GeneGo, Inc., the ... NIHR Biomedical Research Centre for Mental Health at the ... College London (BRC-MH), has joined the MetaMiner CNS Partnership ... Breen are leading the BRC-MH team for this project. ...
... adipocyte differentiation kits -SAN DIEGO and NEW HAVEN, ... co-exclusive license to market CellDesign,s AdipoDesign Starter Kit ... and study adipocytes from adipogenic progenitor cells. ... of leading stem cell research technologies and enables ...
... an era , Some 65 million years ago, ... more catastrophic events - such as a comet strike or ... dust and smoke that obstructed sunlight for a long period ... the plant species and numerous animals, including the dinosaurs. Only ...
Cached Biology Technology:The NIHR Biomedical Research Centre for Mental Health London has Joined the MetaMiner CNS Partnership Program 2The NIHR Biomedical Research Centre for Mental Health London has Joined the MetaMiner CNS Partnership Program 3The NIHR Biomedical Research Centre for Mental Health London has Joined the MetaMiner CNS Partnership Program 4Stemgent, CellDesign Sign Co-Exclusive Marketing Agreement on Stem Cell-Based Adipocyte Research Products 2DNA duplication: A mechanism for 'survival of the fittest' 2
... EVO96R and Freedom EVO384R are fast multi-channel ... in three different sizes, with a multi-channel ... deliver significant time saving, with true parallel ... setup of your assays with the Freedom ...
... are fast multi-channel pipetting platforms consisting of ... with a multi-channel head and a robotic ... with true parallel processing of sample plates ... with the Freedom EVOware program. ...
Prepared by multi-temperature ethanol fractionation with extensive charcoal treatment and dialysis.• Assay: ≥ 95 % (HPCE)• pH ~5.2 (10 mg/mL in 0.15 M NaCl)...
... Linkage: This CLS number is a ... match Cornings product number. If showing ... the old Sigma-Aldrich number (Z71,405-4) or ... Dim: diam. 60 mm volume ...
Biology Products: