扎实的科学帮助美国回应气候变化挑战
(2014-05-08 16:08:54)
标签:
杂谈 |
分类: 环境与能源 |
Bridget Hunter | Staff Writer | 2014.05.02
环保署署长吉娜•麦卡锡2013年8月到阿拉斯加(Alaska)急剧缩减的波蒂奇湖冰川(Portage Lake Glacier)凸显贯彻欧巴马总统的气候行动计划的紧迫性。
华盛顿——环境保护署(Environmental Protection Agency)署长吉娜·麦卡锡 (Gina McCarthy)4月28日在国家科学院(National Academy of Sciences)的一次讲话中说,“人们可以拥有各自的观点,但无法有各自的事实”。她说:“遵循科学,所有人都是赢家。这个国家和这个世界都会向前进。”
麦卡锡简要回顾了环保署自1970年成立以来的成就。她承认环保署采取的一些行动曾引起争议,但强调其总体成就毋庸置疑。
她说:“科学继续是促进美国健康、繁荣和创新的引擎,并且推动全球进步。我骄傲地说,环保署多年来帮助打造了这些进步。在这个过程中,科学始终是我们的导师和卫士。”
环境变化
麦卡锡谈到环境变化时表示,遵循科学的必要性和无视科学的危险性“水晶般清晰”。
即将完成的下一次“美国全国气候评估”(U.S. National Climate Assessment)是基于最可靠的现有科学数据,其结果应将为采取哪些行动以减少气候变化对人体健康和安全的威胁具有指导意义。麦卡锡表示,公众不能让对科学指手画脚的人“继续制造疑虑,阻止我们采取亟需的气候行动。”
麦卡锡说:“气候证据是清楚的:北极海冰正在缩减到新的最低纪录点。海洋洋面正在上升到新的最高纪录点。无所作为的代价正在变得更大:2012年是历来灾难代价最高的一年,达1100亿美元。极端气候影响到保险费、财产税、食品价格、医疗费用及其他。”她还说,“否认和无所作为是头号最大危险”。
麦卡锡说,欧巴马总统有关减少温室气体排放的“气候行动计划”(Climate Action Plan)对于防备气候变化造成的影响至关重要。她保证,环保署将“毫无折扣”地兑现这项计划交给它的使命。
美国污染控制纪录
1970年环境保护署的成立为实现空气更清洁和发展推广催化式排气净化器和烟囱废气过滤器等新技术铺平了道路。这些美国的发明创造减少了尾气排放和电厂污染,让世界发生了改变。
麦卡锡说,科学继续是有力合理的规章标准的基础。通过科学,人们发现了空气污染与肺部疾病的关系;是科学使人们认识到有毒废气与大脑发育障碍的关联;是科学确定了酸雨的危害性。
2014年,由于几十年来实施有科学根据的法律和规章,美国儿童血液中的含铅量大幅度下降,危害人体健康和导致酸雨的大批污染物的排放量在美国减少了将近70%。
麦卡锡说:“科学打破复杂的毒物世界,即使面对不确定因素,也仍在取得进步”,“环保署把化学毒性和安全数据放到网上时,就会引起制造商、零售商和消费者的注意,就会有变化。”
麦卡锡还谈到美国在净化饮水、治理受污染土壤和避免室内氡气和霉菌等方面取得的成就。
她说:“保障健康是环保署的头等要务。作为科学家和公共健康专业者,我们有责任在扎实的科学受到不公正指责时发出我们的声音。”她说:“实事是,科学为我们的规章、政策和项目提供了依据,而这一切给公共健康、我们的星球、我们的家庭开支和给消费者及公司都带来了好处。”
麦卡锡说,从烟囱废气过滤器到催化式排气净化器,美国在控制污染方面的创新有目共睹,并且说,美国环境法律“认识到鼓励这种发明创造的必要”。
麦卡锡说,世界在2014年面临的环境危险与1970年第一个地球日(Earth Day)诞生时已不可同日而语,但是她说,行动呼声始终如一,对运用科学响应呼声的承诺必须保持坚定。她说:“在我们采取行动减少碳污染和使我们的社区更有能力应对气候变化的过程中,让我们大力倡导科学在美国持续进步中的主导作用。”
Read more: http://iipdigital.usembassy.gov/st/chinese/article/2014/05/20140502298715.html#ixzz316rCTGUm
Sound Science Helps U.S. Answer Challenge of Climate Change
By Bridget Hunter | Staff Writer | 29 April 2014
EPA Administrator Gina McCarthy visited the Alaska’s rapidly receding Portage Lake Glacier in August 2013 to highlight the urgency of implementing President Obama's Climate Action Plan.
Washington — “People are entitled to their own opinions, but not their own facts,” Environmental Protection Agency (EPA) Administrator Gina McCarthy told an audience at the National Academy of Sciences on April 28. “When we follow the science, we all win. This country and the world move forward.”
McCarthy briefly recapped the EPA’s history of successes since its founding in 1970, acknowledging the controversy that accompanied some agency actions while maintaining its overall achievements are undeniable.
“Science continues to be the engine that drives America's health, prosperity and innovation — and pushes global progress. And I'm proud to say that EPA has helped shape that progress for years. Along the way, science has been our professor and our protector,” she said.
CLIMATE CHANGE
On the threat of climate change, the need to follow the science and the risks of ignoring it “are crystal clear,” McCarthy said.
The next U.S. National Climate Assessment, which is nearing completion, is based upon the best scientific data currently available and its findings should frame actions to reduce the threats climate change poses to human health and safety. The public cannot let critics of science “continue to manufacture uncertainties that stop us from taking urgently needed climate action,” according to the administrator.
“Climate evidence is clear: Arctic sea ice is receding to new lows. Seas are rising to new highs. And the cost of inaction is escalating: 2012 was a historically expensive year for disasters, with a price tag of $110 billion dollars. Climate extremes impact insurance premiums, property taxes, food prices, medical bills, and more,” she said, adding that “denial and inaction are the biggest dangers of all.”
McCarthy said President Obama’s Climate Action Plan to cut greenhouse gas emission is critically important for preparing for climate change impacts, and she pledged the EPA will deliver “without fail” the portions of the plan assigned to it.
U.S. POLLUTION CONTROL RECORD
The creation of EPA in 1970 paved the way for cleaner air and new technologies like the catalytic converter and smokestack scrubbers — American innovations that cut tail-pipe emissions, slashed power plant pollution, and changed the world.
Science remains the foundation for strong, sensible regulatory standards, McCarthy said. Science linked air pollution to lung disease; science connected toxic fumes with impaired brain development; and science identified the dangers of acid rain.
In 2014, thanks to decades of enforcing science-based laws and regulations, blood lead levels in American children have dropped dramatically, and U.S. emission levels of pervasive air pollutants that harm human health and cause acid rain have been reduced by nearly 70 percent.
“Science untangles the complexity of toxicology so we can make progress even in the face of uncertainty,” McCarthy said. “When EPA puts chemical toxicity and safety data online, manufacturers, retailers and consumers pay attention — change happens.”
McCarthy also cited U.S. successes in purifying drinking water, cleaning contaminated soil and keeping homes safe from radon and mold.
“Safeguarding health is our top priority at EPA,” McCarthy said. “As scientists and public health professionals, we have an obligation to speak up when sound science is unfairly criticized.
“The truth is: Science has supported regulations, policies and programs that have been good for public health, our planet, and our pocketbooks, for consumers and companies.”
From smoke-stack scrubbers to catalytic converters, the United States has a proven track record of pollution-control innovations, McCarthy said, asserting that U.S. environmental laws “recognize the need to cultivate that innovation.”
In 2014, the environmental risks the world faces are different from those at the first Earth Day in 1970, but the call to action is the same and the commitment to using science to answer that call must remain strong, she said.
“As we take action to reduce carbon pollution and make our communities more resilient in the face of a changing climate, let's keep speaking up for the leading role of science in America's continuing story of progress,” McCarthy said.
Read more: http://iipdigital.usembassy.gov/st/english/article/2014/04/20140429298497.html#ixzz316rDpvyV