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Antarctic research helps shed light on climate change on Mars
Researchers examining images of gullies on the flanks of craters on Mars say they formed as recently as a few hundred thousand years ago and in sites once occupied by glaciers. The features are eerily reminiscent of gullies formed in Antarctica's mars-like McMurdo Dry Valleys. view more (2008-08-29)
Why is Greenland covered in ice?
There have been many reports in the media about the effects of global warming on the Greenland ice-sheet, but there is still great uncertainty as to why there is an ice-sheet there at all. view more (2008-08-28)
New evidence implicates humans in prehistoric animal extinctions
Research led by UK and Australian scientists sheds new light on the role that our ancestors played in the extinction of Australia's prehistoric animals. The study, published this week in the journal Proceedings of the National Academy of Sciences of the USA, provides the first evidence that... view more (2008-08-12)
Glaciers Reveal Martian Climate Has Been Recently Active
The prevailing thinking is that Mars is a planet whose active climate has been confined to the distant past. About 3.5 billion years ago, the Red Planet had extensive flowing water and then fell quiet - deadly quiet. It didn't seem the climate had changed much since. view more (2008-04-24)
Low oxygen and molybdenum in ancient oceans delayed evolution of life by 2 billion years
A deficiency of oxygen and the heavy metal molybdenum in the ancient deep ocean may have delayed the evolution of animal life on Earth by nearly two billion years, a study led by UC Riverside biogeochemists has found. view more (2008-03-27)
Evidence of glaciation in 'super greenhouse' world
Large ice-sheets existed on Earth about 91 million years ago, during one of the warmest periods since life began, an international team of scientists reports this week. view more (2008-01-11)
A warming climate can support glacial ice
New research challenges the generally accepted belief that substantial ice sheets could not have existed on Earth during past super-warm climate events. view more (2008-01-11)
Ice Age survivors in Iceland
Many scientists believe that the ice ages exterminated all life on land and in freshwater in large parts of the Northern Hemisphere, especially on ocean islands such as Iceland. view more (2007-07-20)
Melting of the Greenland ice cap may have consequences for climatic change
According to two international-research studies on the last ice age, studies with the participation of Dr Rainer Zahn, research professor in the ICREA at the UAB Institute of Environmental Science and Technology (ICTA), before the great ice sheets of the Arctic Ocean began to melt, early sporadic... view more (2007-05-08)
Finding an answer to Darwin's Dilemma
The sudden appearance of large animal fossils more than 500 million years ago - a problem that perplexed even Charles Darwin and is commonly known as "Darwin's Dilemma" - may be due to a huge increase of oxygen in the world's oceans, says Queen's paleontologist Guy Narbonne, an expert in... view more (2006-12-11)
Species unique to tidal marshes face threats
Tidal marshes cover only about 45,000 square kilometers worldwide-about the area of Denmark. In comparison with other habitats, tidal marshes support few nonaquatic vertebrate species, but their unique characteristics have led to the evolution of species and subspecies that are endemic (found... view more (2006-08-01)
Study shows our ancestors survived 'Snowball Earth'
It has been 2.3 billion years since Earth's atmosphere became infused with enough oxygen to support life as we know it. About the same time, the planet became encased in ice that some scientists speculate was more than a half-mile deep. view more (2006-06-07)
Man may have caused pre-historic extinctions
New research shows that pre-historic horses in Alaska may have been hunted into extinction by man, rather than by climate change as previously thought. view more (2006-05-05)
Brown University Geologists Create 5-Million-Year Climate Record
Using chemical clues mined from ocean mud, Brown University researchers have generated the longest continuous record of ocean temperatures on Earth. view more (2006-04-07)
Evolutionary scrap-heap challenge: Antifreeze fish make sense out of junk DNA
Scientists at the University of Illinois have discovered an antifreeze-protein gene in cod that has evolved from non-coding or 'junk' DNA. view more (2006-04-04)
Climate change and the rise of atmospheric oxygen
Today's climate change pales in comparison with what happened as Earth gave birth to its oxygen-containing atmosphere billions of years ago. view more (2006-03-23)
Fossil wood gives vital clues to ancient climates
New research into a missing link in climatology shows that the Earth was not overcome by a greenhouse period when dinosaurs dominated, but experienced rapid fluctuations in temperature and sea level change that resulted in a balance of the global carbon cycle. view more (2006-02-24)
Glacial pace of erosion was not so slow, new technique shows
Glaciers, rivers and shifting tectonic plates have shaped mountains over millions of years, but earth scientists have struggled to understand the relative roles of these forces and the rates at which they work. view more (2005-12-12)
Study casts doubt on 'Snowball Earth' theory
"Snowball Earth" proponents, who say that Earth's oceans were covered by thick ice, explain the survival of life by hypothesizing the existence of small warm spots, or refugia. view more (2005-09-30)
Where Does the North Pole Ice Come From? The Origin of the Northern Hemisphere Ice Age
Large areas of the Northern Hemisphere are currently covered with ice. This has, however, not always been the case. In the current issue of the science magazine "Nature", scientists from the GeoForschungsZentrum Potsdam (GFZ) and the Potsdam Institute for Climate Impact Research (PIK) present a... view more (2005-02-23)
No Glacier Existed Twenty Thousand Years Ago In Trans-Ural Region
It was not that cold in subarctic areas of Russia during the epoch of the latest glaciation. This has been proved by the remains of animals found there - not only remains of such frost-resisting animals as mammoths and reindeers, but also those of horses. view more (2004-11-19)
Antarctica and climate change - representatives of 32 nations decide on research focus programmes for the exploration of Antarctica
Antarctica and climate change - representatives of 32 nations decide on research focus programmes for the exploration of Antarctica view more (2004-10-21)
Greenhouse Gases - Nothing To Blame For?
In the nearest future we may witness global cooling in spite of increasing concentration of greenhouse gases in the atmosphere. That can happen, if the following hypothesis is correct: not the growth of greenhouse gases concentration provokes temperature to rise, but vice versa. It is generally... view more (2004-07-30)
The Caucasus glaciers in the past, present and future
Hydrometeorologists have counted that within the last century the area, volume and length of the Big Caucasus glaciers decreased steadily. The process continues now and will go on in the future. Along with that, the quantity of glaciers grows. The global climate change has naturally affected the... view more (2003-11-21)
Cryogenic Bank Of The Earth
The littoral plains of north-eastern Eurasia are covered with a thick layer of permafrost. This layer preserves seeds, spores and microorganisms. Some of them that are thousands and hundreds of thousands years old are still alive. The study of fossil life was supported by the Russian Foundation for... view more (2003-11-06)
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