Related topics: health care

What a Virginia wildflower can tell us about climate change

When climates change, plants and animals often are forced to colonize new areas—or possibly go extinct. Because the climate is currently changing, biologists are keenly interested in predicting how climate-induced migrations ...

Study: Aegean farmers replaced hunters of ancient Britain

A wave of migrants from what is now Greece and Turkey arrived in Britain some 6,000 years ago and virtually replaced the existing hunter-gatherer population, according to a study published Monday in the journal Nature.

Solving the 'population problem' through policy

Australia has a problem with population. It's a problem with the potential to result in enormous chaos, risking the nation's economic well-being. And this problem is moving like an overcrowded Sydney train, careering out ...

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Population ageing

Population ageing or population aging (see English spelling differences) occurs when the median age of a country or region rises. With the exception of 18 countries termed by the United Nations 'demographic outliers' (see the Ud 2005 Human Development Report) this process is taking place in every country and region across the globe.

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