Developing countries, including African countries, are vulnerable to climate change due to increase of stresses such as human population, water scarcity, land degradation and food insecurity (IPCC 2012; World Bank 2010).
In an ideal world of perfect markets, as a population declines scarcity would drive up the price to a point that the commodity (tuna in this case) would no longer be economically viable, hitting a price consumers would no longer be willing to pay.
Increasing demand and competition caused by the world's rising population and scarcities created by climate change and poor management threaten to disrupt economies and increase regional tensions, the report concludes.
However, to date, most of the randomized clinical trials and meta-analyses were conducted in Caucasian populations with scarcity of data in Asians.
Although the studies in this review asked similar questions (i.e., enoxaparin vs. heparin, pharmacologic prophylaxis vs. SCDs) and had similar patient populations, the scarcity of good quality studies with low risk of biases prevents definitive conclusions.
Some of the most pressing problems in human affairs expanding populations, food scarcities, environmental pollution including global warming, extinctions of plant and animal species, and all the attendant sociological and political problems are to a great degree ecological.
We are seeing climate change, food and water scarcity, population growth and the problems associated with urbanisation.
Combined with high population growth, the scarcity of land undermines urban planning, industrial, commercial and agricultural development, and environmental management.
The result, says the Intergovernmental Panel for Climate Change, is that the fraction of global population experiencing water scarcity is destined to increase throughout the 21st century.
Despite many NGOs wagging their fingers at corporate leaders and the known facts about population growth, resource scarcity and depleting water tables - those 30 executives concluded sustainability currently ranked as "important" but "not critical" to their companies' strategies.
