→ hcmike :看不懂0.0 健康世界？最後二個單字 08/06 20:32
Title: Global Change and Energy Crisis: Analyses and Solutions
Speaker: Professor Frank Shu (UC San Diego)
Professor Shu is a renowned astrophysicist world wide. His outstanding
academic and research record has won him numerous awards and honors. He is
also a fellow of National Academy of Science of the US and Academia Sinica
of Taiwan. This Friday he will give his insight into the issue facing this
generation of mankind. So please mark your calendar and remember to join
the event!
Time : 8/8 Friday 2pm
Location: NTU Physics Building Room 104
Abstract:
We analyze the implications of the recent G8 targets on the reductions in
carbon dioxide emissions for 2050 in terms of the changes needed in global
and local energy usage. We then review in a first principles manner the
physics behind biofuels, photovoltaics, wind, surf, geothermal, tides,
hydroelectric, nuclear fission, and nuclear fusion as alternative energy
sources to fossil fuels. We demonstrate why only an aggressive expansion of
nuclear power plants can meet the 2050 G8 goal, although photovoltaics holds
promise as a long-term resource if costs can be driven down enough so that
their installation on a large scale does not eat up almost half of worldwide
GDP. Even if cost were not a factor, land use dictates that nuclear power is
the only viable, carbon-friendly, choice possible for Taiwan. We analyze the
plan put forward by Greenpeace and the European Renewable Energy Council and
show that the use of only renewable energy sources to meet the G8 goal would
cause massive harm to the natural environment and still be unresponsive to
the economic aspirations of developing nations. We present new ideas in
nuclear power technology that can address legitimate concerns about its cost,
safety, waste, and potential for weapons proliferation. We summarize by
giving a coherent energy strategy that can appeal to developed and developing
nations alike, but that requires environmentalists and nuclear activists to
work together for a safer and healthier world.
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