【正确答案】 D

【答案解析】[听力原文] The impact of climate change is so great that it could undermine the last 50 years of gains in global health, according to the Lancet Commission report. Weather extremes made worse by climate change are potentially destructive and unacceptable, says Commission's project leader Nicolas Watts. 'In terms of drought, we often see corresponding decreases in agricultural productivity, which then in turn has a profound impact on malnutrition, particularly for children. ' Increasingly, it's just hotter, which can be deadly. An extreme heat wave in 2003 left 70, 000 people dead across Europe. And those sorts of events are expected to increase in intensity and severity as time goes on. The World Health Organization warns that unless dramatic action is taken to reduce global warming emissions by 2030, approximately 250, 000 people will die each year from the effects of climate change. Outdoor air pollution is linked to some three million deaths worldwide. Watts says a shift from coal-fired power plants to renewable energy can greatly reduce that danger. 'We see immediate declines in hospital admissions and in health care costs, which reduces the burden of already struggling health budgets. But there are also benefits to be found outside of the energy sector, you can decrease the reliance on cars and motor vehicles, and try to encourage active transport like cycling and walking, you reduce the carbon emission from that sector, but you also decrease the rates of diabetes and obesity. ' he said. Among its recommendations, the Commission supports a phase-out of coal power plants, expansion of renewable energy, investment in health systems and a commitment to a strong global climate treaty. Watts says public health is at the core of a new global agreement. 'Most of what you want to do to respond to climate change is good for public health, and it is actually a much brighter future. ' Watts says health care professionals can be advocates in the battle against climate change, he says what is good for the planet is good for patient care. What's the impact of drought according to Watts? 听力原文中引用Watts的话，提到In terms of drought，we often see corresponding decreases in agricultural productivity, which then in turn has a profound impact on malnutrition，particularly for children. 由此可知干旱会导致农业生产力降低，而农业生产力下降反过来又会对营养不良问题产生重大影响，尤其是儿童营养不良。由此可知，干旱会导致粮食产量减少和让更多的人营养不良，D 项表述符合原文，故选D。