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Fact Sheet for Ecological
Crisis
Soil
It takes 5 centuries before one inch of topsoil
is made all around the globe. We are losing
topsoil at the rate of –
150-300 million hectares (10-20 percent of world
total) is degraded
As of 2001, food production worldwide has
declined by 13 percent due to land degradation
Plants take up nutrients and can leave soil
slightly more acidic but it is decaying matter
that helps in reducing soil acidity. Farming and
forestry which take away plants (harvesting for
example) contribute for increased soil acidity.
Earth’s land area is 130 meter kilometer
squared; 35% is at risk of desertification.
Water
There are 421 rivers in the Philippines.
Fifty are already biologically dead. There are
158 major rivers and not one of them has safe
drinking water.
Seventy percent of the planet is covered with
water. Some water is lost to outer space but is
also replaced from outer space. Water was where
life was born and where life has existed for
most of its history. Water and life has
maintained a fairly narrow range of temperature
on the planet, even though the heat from the Sun
has varied by as much 25%.
97 percent of the water on the planet is salty.
Two percent is fresh but frozen at the ice caps.
This means that only one percent is fresh water
and of that 0.6% is buried in aquifers. Only
0.1% is found in lakes and rivers.
One week without water and we die.
One of two people in the world drinks from water
coming from mountains.
Nitrogen and phosphorus from agricultural lands
seep into the sea and cause eutrophication.
2 billion people are water-stressed.
By 2015, 40 percent of the world will be living
in water stressed conditions.
One six inch silicon water results in 14 kg of
solid waste and 11,000 liters of waste water
Atmosphere
Troposphere is the part of the atmosphere
that supports oxygenated life, it is 8 km above
earth’s surface. Primary air pollutants are CO,
CO2, SO2, NO, hydrocarbons, ozone, lead, CFC,
photochemical smog.
CO replaces O2 in the blood, causing O2
deficiency and if exposed for several hours,
leads to death.
Ozone is the one that provides the blue color of
our atmosphere.
The ozone layer affects global climate and
weather patterns. Its thinning can cause changes
in climate.
Acid rain caused by sulfur dioxide from burned
coal and oil. Nitrogen oxides from vehicles also
contribute to acid rain. Effect of acid rain is
on structures, on soil fertility (turns coil
acidic), interferes with photosynthesis, kills
marine life.
Climate change
Our production of carbon dioxide is a major
enhancer of the greenhouse effect (this is a
natural phenomenon that keeps our atmosphere
warm enough) that brings about global warming.
The sudden increase in temperature causes floods
and increased sea levels. Possible increase in
temperature by 2100 of 1-3.5C will be
significant enough to change climate, similar to
last ice age. Decline of mountain glaciers is an
effect of global warming. This affects
agriculture, settlements, etc. biodiversity also
affected. Soil erosion due to floods is another
effect.
In 2001, the increase in temperature has been
correlated to increased floods in Vietnam,
Siberia and Africa and droughts in Iran,
Afghanistan, Pakistan, Brazil, North Korea and
Japan.
Social
1.2 billion live on less than P50.
3 million are dying from AIDS yearly
100-150 million suffer asthma
2.4 billion lack basic sanitation
2001 was second warmest year in the last century
Food Production
Unnecessary protein intake pushes the
production of more fish, cattle, poultry, that
are raised in conditions that are hazardous –
We have fished 90% of the big fish in our
oceans. (Newsweek, 2003)
Rainforests
We are destroying 20 million hectares of
rainforest each year. If this continues, we will
have no rainforests in 40 years. (ENFO, 1997)
21.6 hectare per minute of rainforest are being
cleared (ENFO, 1998).
Rainforests are cleared for ranches (Central
America, 2/3 lost to ranches), absorbed and
lesser water vapor coming from trees.
It takes 17 trees to make one ton of paper. 34%
of our waste is paper (ENRO, 1998). |