Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Climate change sceptics out in the cold

03.06.2005


Human activities are causing ocean temperatures to rise, according to a paper published in the American journal Science on 3 June, 2005.



Tim Barnett, the lead author on the paper said: ‘The evidence, based on computer models and observations in the field, is so strong that it should put an end to any debate about whether humanity is causing global warming.’

In the paper the scientists describe how they have been able to rule out natural climate variability and solar or volcanic forcing as explanations for the observed warming in the oceans over the last 40 years. The observed temperature rise in the oceans is only accurately simulated by climate models if greenhouse gas emissions from industry, agriculture and transport are incorporated.


Jonathan Gregory, from the Centre for Global Atmospheric Modelling at the University of Reading, worked on the interpretation of the data: ‘This research complements that done on atmospheric temperature change. Analysis of the ocean component of climate models agrees with conclusions about the atmospheric surface temperature simulated by models: that human influence is causing the warming we are measuring.’

Jonathan, funded by the Natural Environment Research Council and the Hadley Centre for Climate Prediction and Research added: ‘The pattern is also consistent with several other earlier studies showing that ocean temperatures will rise with increasing levels of carbon dioxide in the atmosphere.’

The research found that in all of the ocean basins, the warming in the upper 700 metres in the models corresponded to the measurements obtained at sea with confidence exceeding 95 percent. The correspondence was especially strong in the upper 500m of the water column. It is this high degree of agreement and statistical significance that leads the team to conclude that the warming is the product of human influence.

Tim, a marine physicist from Scripps Institution of Oceanography, San Diego, said: ‘The argument that climate models are so inaccurate as to be unbelievable is no longer tenable. They do the temperature part of the problem correctly and that suggests their forecasts for the next couple of decades are apt to be reasonably correct. This means the reality of global warming is likely to be underscored by changes that millions of people will feel in their lives.’

Owen Gaffney | alfa
Further information:
http://www.nerc.ac.uk

More articles from Earth Sciences:

nachricht NASA sees quick development of Hurricane Dora
27.06.2017 | NASA/Goddard Space Flight Center

nachricht Collapse of the European ice sheet caused chaos
27.06.2017 | CAGE - Center for Arctic Gas Hydrate, Climate and Environment

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Touch Displays WAY-AX and WAY-DX by WayCon

27.06.2017 | Power and Electrical Engineering

Drones that drive

27.06.2017 | Information Technology

Ultra-compact phase modulators based on graphene plasmons

27.06.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>