63.
Which of the following is NOT mentioned in the article?
A. The
men with low-risk prostate in the study lost weight and lowered their blood
pressure.
B. A
famous author and Dr. Dean Ornish led this research.
C. Dr.
Dean Ornish expressed his optimism about this research in a telephone
interview.
D.
Conventional medical treatment has no effect on the men with prostate cancer.
C
The
world's oceans have warmed 50 percent faster over the last 40 years than
previously thought due to climate change, Australian and US climate researchers
reported on Wednesday. Higher ocean temperatures expand the volume of water,
contributing to a rise in sea levels that is submerging small island nations
and threatening to great damage in low-lying, densely-populated delta regions
around the globe.
The
study, published in the British journal Nature, adds to a growing scientific
chorus of warnings about the pace and consequences of rising oceans. It also
serves as a corrective to a massive report issued last year by the
Nobel-winning UN Intergovernmental Panel on Climate Change(IPCC), according to
the authors.
Rising
sea levels are driven by two things: the thermal(热)expansion of sea water, and
additional water from melting sources of ice. Both processes are caused by
global warming. The ice sheet that sits at the top of Greenland, for example,
contains enough water to raise world ocean levels by seven metres(23 feet), which would
bury sea-level cities from Dhaka to Shanghai.
Trying
to figure out how much each of these factors contributes to rising sea levels
is critically important to understanding climate change, and forecasting future
temperature rises, scientists say. But up to now, there has been a confusing
gap between the projections of computer-based climate models, and the
observations of scientists gathering data from the oceans.
The
new study, led by Catia Domingues of the Centre for Australian Weather and
Climate Research, is the first to reconcile(与…一致)the models with
observed data. Using new techniques to assess ocean temperatures to a depth of
700 metres(2,300 feet)from 1961 to 2003, it shows
that thermal warming contributed to a 0.53 millimetre-per-year rise in sea
levels rather than the 0.32 mm rise reported by the IPCC.