«The Sun is a burning ball of mostly gaseous hydrogen with a surface temperature of 6000 degrees centigrade, large enough to hold a million Earths. The importance of the sun rests on the fact that it warms the surface of an otherwise cold and...» Summary abstract

«The word tornado derives from the Spanish word "tornado", meaning "thunderstorm", which in turn was derived from the Latin word "tonare", meaning, "To thunder". People also refer to tornadoes as twister, and the colloquial term cyclone.A tornado is...» Summary abstract

«Smell the scent of flowering honeysuckle, hear the chirping of birds, and the wind in the boughs coupled with the crunch of foliage beneath the feet. The air is pristine, the sky is clear blue, and the sounds of nature are all around. A forest is...» Summary abstract

«Floods = natural disaster. Floods = hazard for human and several animals. The Mediterranean supplies water. The Cevennes block everything. Climatic situation between 8h and 15h. Formation of cloudy cells, break up in point of V, V cells aspirate...» Summary abstract

«The majority of the Earth's water, specifically 99% of it, makes up oceans, ice caps and glaciers, so only 1% is left for humans to use (What is Surface, 2001). Although we have a limited water supply, this does not stop us from wasting water or...» Summary abstract

«In recent months, Africa has been widely mentioned in the popular press. While the focus of this media attention has been the AIDS epidemic that is occurring in the region, it is important for Westerners to understand that there are a host of other...» Summary abstract

«Climate change is now widely recognised as a long term threat. It is thought that the climate is being changed by the increasing emissions of greenhouse gases, especially CO2, arising from human activities. Useful reductions in CO2 emissions can be...» Summary abstract

«Archaeology has traditionally been defined relative to anthropology as "anthropology of the past" but an alternative viewpoint defines archaeology as "geography of the past." As with other geographically-based fields, archaeological research...» Summary abstract

«Between July 26 and August 3, 2002, research was conducted by Prof. William Aylward of the UW-Madison Classics Department, Dr. Jim Compton Tucker of the NASA Goddard Space Flight Research Center, and Jamon Van Den Hoek in partnership with the Troia...» Summary abstract