Biology,  Johnson, Raven
The world's population is increasing by 100 million
people per year .... [this] population is placing considerable stress on the environment ....producing enormous amounts of
waste and pollution. [Less people [also] = more prosperity]
It is important to develop solar energy and wind energy.
[Energy efficiency should be promoted for] as much
as 75% of electricity produced in the United States and Canada is wasted through the use of inefficient appliances. [This
can be dealt with by replacing with available yet not promoted tech. One well known example, which is established is], the
fluorescent light bulb [which] uses 20% of the amount of electricity as a conventional lightbulb uses, provides equal or better
lighting, lasts up to 13 times longer, AND provides substantial cost savings
Roughly seven times as much carbon dioxide is locked
up in fossil fuels, ~ 5 trillion metric tonnes, as exists in the atmosphere today
Widespread agriculture introduces large amounts of
many new kinds of chemicals into the global ecosystem .... [Some] banned for normal use the United States .. .are still manufactured
in the United States and exported to other countries.
Thinning of the ozone layer in the stratosphere .....
is a matter of serious concern. ..... Life on land may have only become possible only when the oxygen layer was sufficiently
think to generate enough ozone to shield the surface from these destructive rays. This may account for the billions of years
in which all life was aquatic.
The undisturbed tropical rainforest has one of the
highest rates of net primary productivity of any plant community on earth, and it is therefore imperative to develop ways
that it can be harvested for human purposes in a sustainable, intelligent way.
[Currently] about 5.5 million square kilometers of
tropical rainforest still exist in relatively undisturbed form about half of the original extent of the rainforest about 160,000
square kilometers are being cleared every year ..... a one time consumption of natural resources that will never
be available again.
Therefore arguments [for] replacing unmanaged old-growth
forest by young ... stands, for example, ... [are ridiculous and] will lead to massive carbon losses to the atmosphere
mainly by replacing a large pool with a minute pool of regrowth and by reducing the flux into a permanent pool of soil organic
matter. ... [To increase the terrestrial sink capacity by afforestation one must also protecthose forests which already exist.]