Quoted from The Hundred-Year Lie:

Because we all live in the same chemical neighborhood, which is to say, planet Earth, we all have been participants in this huge chemical experiment that we call modern civilization. As a consequence, we can expect our risk trade-off quandaries to multiply and sharpen with time because the chemical onslaught against our health is quickening and deepening. Flame retardants in plastics, known as PBDEs, illustrate one facet of the problem. Measurements conducted by the U.S. Centers for Disease Control and Prevention indicate that PBDE levels in our bodies are doubling every eighteen months.

Synthetic-chemical production levels overall have been doubling every decade since the 1940s. At least five new synthetic chemicals are developed for commercial use every single day, yet no one has any realistic idea how harmful these chemicals are to us, either alone or acting in synergy with other chemicals. Our ignorance on these matters long ago surpassed our wisdom. Even global warming, to the extent that it’s caused or exacerbated by human actions, mostly stems from the release of synthetic chemical toxins.

Fitzgerald, Randall (2006-06-22). The Hundred-Year Lie: How to Protect Yourself from the Chemicals That Are Destroying Your Health (pp. 217-218). Plume. Kindle Edition.