The three tangibles seen that could cause collapse of the ecosystem as early as this century include climate change, population growth and environmental destruction, scientists warned in the journal Nature.
The World’s population will likely reach 9.2 billion in 2050, with nearly three times as many people over the age of 60 and virtually all growth in the developing world, the UN Population Division reported.
Persuading couples to wait is one strategy India is using to curb a rapidly growing population that threatens to turn its demography from a prized asset into a crippling burden.
Japan is experiencing low birth rate, an aging population and it will come soon generally, a decline in population.
Record harvests are unable to keep up with population growth, along with land scarcity, water scarcity are now emerging as serious constraints on effort to expand world food production especially in developing economies.