For those of you who want to read an introduction on energy/thermodynamics/environment/sustainability (only high school math, do not worry) you can try your teeth on the following
The limits of technological solutions to sustainable development
$this->bbcode_second_pass_quote('', '[')b]Abstract Sustainable development has been defined by
political and corporate leaders as the combination of environmental
protection and economic growth. As a result,
the concept of eco-efficiency has been promoted as the
primary tool for achieving industrial sustainability.
However, there are at least four reasons why technological
improvements in eco-efficiency alone will be insufficient to
bring about a transition to sustainability. First, considering
that the very foundations of western industrial societies
are based on the exploitation of non-renewable
minerals and fuels, it will be extremely difficult to switch to
an industrial and economic system based solely on
renewable resources. Clearly, the continuing use of nonrenewables
is inherently unsustainable because of finite
material supplies and the fact that 100% recycling is
impossible. Second, given the limited supply of nonrenewable
fuels, long-term sustainability can only be
guaranteed if all energy is derived directly or indirectly
from the sun. However, if the current U.S. energy demand
would have to be supplied solely from solar sources, a wide
range of serious and unavoidable negative environmental
impacts are likely to result. Third, even the best of human
ingenuity and the greatest technological optimism are
bounded by the second law of thermodynamics, which
dictates that all industrial and economic activities have
unavoidable negative environmental consequences. Finally,
improvements in eco-efficiency alone will not guarantee
a reduction in the total environmental impact if economic
growth is allowed to continue. Unless growth in both
population and consumption is restrained, these technological
improvements only delay the onset of negative
consequences that, as a result, will have increased in severity,
Long version: 10 pages ... will take less than 45 minutes to read ... so log-off the XXX sites, switch off the TV and read