Results 241 to 250 of about 1,169,413 (296)

Non-gravitational acceleration indicative of cometary activity of near-Earth object. [PDF]

open access: yesNat Astron
Farnocchia D   +14 more
europepmc   +1 more source

Planet Earth

open access: yes, 2014
Abstract Earth is the most dynamic planet in our solar system, but the very same geophysical features that make our world so life-giving and life-preserving also make it dangerous. ‘Planet Earth: in a nutshell’ provides a potted biography of the Earth’s 4.6 billion years of history describing the major natural hazards—storms, floods ...
Bill McGuire
core   +3 more sources

Trophic Downgrading of Planet Earth

Science, 2011
Until recently, large apex consumers were ubiquitous across the globe and had been for millions of years. The loss of these animals may be humankind’s most pervasive influence on nature. Although such losses are widely viewed as an ethical and aesthetic problem, recent research reveals extensive cascading effects of their disappearance in marine ...
Estes, JA   +23 more
openaire   +3 more sources

The Earth as a Planet

Nature, 1970
A comparison of the Earth with the Moon and other planets can help considerably in the solving of geophysical problems. Professor Cook deals with some of these problems in this article, which is a summary of the inaugural lecture he gave as professor of geophysics at Edinburgh on January 15.
openaire   +2 more sources

A Sunshade for Planet Earth

Scientific American, 2008
The article focuses on ideas for halting global warming that utilize geoengineering, or deliberately altering the climate with technology. Ideas fit into two categories: affecting how much sunlight reaches Earth's surface or affecting how much heat escapes into space, which involves carbon dioxide (CO2).
openaire   +2 more sources

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