气候学家说，这种扩张并不能改变南极消融的长期预测，但怀疑论者已经拿它来攻击这一预测。
Climatologists say the expansion doesn't change long-term projections of Antarctic melt, but skeptics have used it to attack their forecasts.
但是，当冷战加剧后，他再也不能对一个极其重要的观点-自由与军事扩张主义之间的关系-保持沉默了。
But soon after the Cold War intensified, he could no longer be quiet on an issue that was vastly important to him, namely, the relationship between liberty and military expansionism.
Sierra说，如果城市不能做好准备，新的增长将导致“位置恶劣、缺少服务并往往位于城市周边地区的现有贫民区”的恶性扩张。
Unless steps are taken to prepare cities, new growth will result in unplanned expansions of “existing slum settlements—poorly located, unserviced ghettoes, often on the urban periphery,” says Sierra.
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