Submitted by earthman on Tue, 05/17/2011 - 22:27
In a recent news article in Nature, the author Fred Pearce examined the assumption behind the latest estimate of the population growth. The global population expected to rise one more billion by the end of the century. However, the author points to the paradox of the future fertility rate and suggests a change in perception in child birth. Since most life threatening diseases for the babies are declining now, modern women choose not to have more number of babies as compared to their grandmothers.
Precipitation levels and species biodiversity may affect humans' exposure to zoonotic diseases (those carried by other animals) reports a new Nature article.
Role of the Agulhas system in ocean circulation and climate is recently reviewed by a series of authors in a Nature review article. As it is understood now that the Atlantic Ocean receives warm and saline water from the Indian and Pacific Ocean via Agulhas system around the southern tip of Africa.