Today, Demographics note that population ageing is a trend spreading across the world. Global life expectancy reached about 47 years by 1950, has reached to 67 today, and is projected to rise to 75 by 2050.

Due to declining fertility, the proportion of older adults in the global population is also increasing. The global population of people 60-plus is expected to rise from 10.8% in 2009 to almost 22% by 2050. Policy makers describe these trends as a " Graying globe".

The growth rate of India's GDP has been exceeding Japan's for many years, mainly due to the higher population growth in India, becoming the world's most populous country 5 years ago, reaching a total of 1.5 billion people earlier this year.

March, 22, 2030: Net Cereal deficits in the Developing Countries have increased to 13% of the consumption, or 232 million tonnes. 30 years ago, the deficits were 103 million tonnes or only 9% of the consumption.

Leaders at the G20 summit in Canada have agreed to cut national budget deficits while endeavouring to promote economic growth. Host Stephen Harper, the Canadian prime minister said short-term stimulus measures would be needed to get economies moving.

In addition, The US President Barack Obama warned against fast and deep budget cuts, fearing damage to global growth. But European members, including the UK, France, and Germany, have already led moves to slash record public deficits, despite opposition from the United States, which is expected to run a $1.3tn deficit in 2010