Posts Tagged 'population'

The Health Challenges of the Growing Class of Megacities

tokyo-japan-at-night

Tokyo is the world’s biggest megacity at a population of over 35,000,000. Image via Wikipedia.

Megacities are usually defined by a total population in excess of 10 million, with an additional component of population density. Rapid urbanization will take a heavy toll on the infrastructure of local governments, if city planners don’t incorporate ways to tackle air pollution.

Read more @ SciTechDaily

Report Claims 100 Million Will Die from Climate Change by 2030

storm-gathering

A new report commissioned by 20 different governments states that more than 100 million people will die by 2030 if nothing is done to tackle climate change. Global economic growth will also be cut by 3.2% of gross domestic product (GDP).

Read more @ SciTechDaily

Projections of Urban Growth Highlight at Risk Areas

urban-expansion-sprawl

Forecasts of different regions’ likelihood of urban expansion could be used to direct conservation efforts

Researchers are trying to make detailed predictions about how urban areas are likely to grow in order to forecast how the next few decades of urbanization will affect biodiversity.

Read more @ SciTechDaily

Birth Ratios Skew Towards More Females During Famine

chinese-mother-with-girls

In China, during the Chinese Great Leap Forward famine, the male to female birth ratios fell significantly. This implies that whenever food is in short supply, women are more likely to bear daughters than sons.

Read more @ SciTechDaily


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ranjitwithkinginbehand.jpgI'm Range, your host. On the menu, photos, art, stories, entertainment and reviews. Links, maths, education and social issues. I'm in Quebec (Canada) or Taiwan (R.O.C.). Follow me on Twitter.

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