Here's a striking read for your Earth Day consideration -- a Wall Street Journal op/ed piece from Patrick Moore, a co-founder and former leader of Greenpeace, explaining why he left the organization.
...The breaking point was a Greenpeace decision to support a world-wide ban on chlorine. Science shows that adding chlorine to drinking water was the biggest advance in the history of public health, virtually eradicating water-borne diseases such as cholera. And the majority of our pharmaceuticals are based on chlorine chemistry. Simply put, chlorine is essential for our health.
My former colleagues ignored science and supported the ban, forcing my departure. Despite science concluding no known health risks – and ample benefits – from chlorine in drinking water, Greenpeace and other environmental groups have opposed its use for more than 20 years.
Opposition to the use of chemicals such as chlorine is part of a broader hostility to the use of industrial chemicals. Rachel Carson's 1962 book, "Silent Spring," had a significant impact on many pioneers of the green movement. The book raised concerns, many rooted in science, about the risks and negative environmental impact associated with the overuse of chemicals. But the initial healthy skepticism hardened into a mindset that treats virtually all industrial use of chemicals with suspicion.
Sadly, Greenpeace has evolved into an organization of extremism and politically motivated agendas. Its antichlorination campaign failed, only to be followed by a campaign against polyvinyl chloride.
Greenpeace now has a new target called phthalates (pronounced thal-ates). These are chemical compounds that make plastics flexible. They are found in everything from hospital equipment such as IV bags and tubes, to children's toys and shower curtains. They are among the most practical chemical compounds in existence...