Search results
Results from the WOW.Com Content Network
The film critiques conventional agriculture, particularly tillage and pesticide use, for its negative environmental effects (soil erosion), role in climate change, and effects on human health. [1] It praises regenerative agriculture as a remedy for improving soil health and carbon sequestration . [ 1 ]
Transcatheter aortic valve replacement (TAVR) is the implantation of the aortic valve of the heart through the blood vessels without actual removal of the native valve (as opposed to the aortic valve replacement by open heart surgery, surgical aortic valve replacement, AVR).
Smith's research investigates global change, soils, carbon sequestration, climate change and climate change mitigation. [6] [1] [7] Since 1996, he has served as convening lead author, lead author and author for part of the IPCC Fourth Assessment Report published by the Intergovernmental Panel on Climate Change, [8] which was awarded the 2007 Nobel Peace Prize. [9]
A soil scientist examining horizons within a soil profile. Soil science is the study of soil as a natural resource on the surface of the Earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils; and these properties in relation to the use and management of soils.
His most cited paper was published in the journal Science in 2004, entitled "Soil carbon sequestration impacts on global climate change and food security" and drew international attention as the first published report on restoring the organic material in soil not only improves soil health but also reduces carbon dioxide in the atmosphere. [3 ...
From ancient times, people suspected that the climate of a region could change over the course of centuries. For example, Theophrastus, a pupil of Ancient Greek philosopher Aristotle in the 4th century BC, told how the draining of marshes had made a particular locality more susceptible to freezing, and speculated that lands became warmer when the clearing of forests exposed them to sunlight.
Earth's critical zone. Illustration by Critical Zone Observatories (CZO) based on a figure in Chorover et al. 2007.. Earth's critical zone is the “heterogeneous, near surface environment in which complex interactions involving rock, soil, water, air, and living organisms regulate the natural habitat and determine the availability of life-sustaining resources” (National Research Council ...
The carbon loss from the soil is due to the removal of plant material containing carbon, via harvesting. When land use changes, soil carbon either increases or decreases. This change continues until the soil reaches a new equilibrium. Deviations from this equilibrium can also be affected by varying climate. [12]