it is about the impacts of population change in water use, food supplies, biodiversity, climate and atmosphere

2. Water is a key element of life for
everyone on Earth. As the world’s
population grows, the demand for water
mounts and pressure on finite water
resources intensifies.
Growing populations, changing
consumption patterns and increasing
industrialization mean people are using
more water.
However our supplies of fresh water,
like other resources, are finite and under
threat. Ground water is being depleted,
and pollution is affecting many
remaining fresh water supplies.

3. Several population factors play
an important role in the increasing
and changing nature of the demand
for food, while also constricting
supply and access to food.
Worldwide, enough food is
produced to feed everyone, yet this
food and the technology to produce
it do not always reach those in need.
As a result of food deficits, nearly 1
000 million people do not get
enough to eat and over 400 million
are chronically malnourished. Every
year 11 million children under the
age of five die from hunger or
hunger-related diseases.

4. The earth’s biological diversity is
crucial to the continued vitality of
agriculture and medicine — and
perhaps even to life on earth itself.
Yet human activities are pushing
many thousands of plant and
animal species into extinction.
Two of every three species is
estimated to be in decline.

5. Rapid population growth exacerbates
vulnerability to the
negative consequences of climate
change, and exposes
growing numbers of people to climate
risk. Population growth
is also one of the drivers of the growth in
greenhouse gases
that contribute to climate change.
Meeting people’s needs for
family planning and reproductive health
builds resilience to
climate change impacts. Meeting family
planning needs will
also stem population growth, easing
challenges associated
with adapting to climate change impacts
and reducing the
growth of greenhouse gas emissions.

6. Pollution from smokestack In many
regions of the country, childhood
asthma rates have risen
dramatically
in the past 20 years. The problems
are not limited to the industrialized
countries with their automobiles
and factories.
Children in undeveloped countries,
where people depend on burning
wood and dung for their heat and
cooking, are also at risk.