This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration. Chemical pollution is "a threat to the thriving of humans and nature of a similar order as climate change" but decades behind global heating in terms of public awareness and action, a report has warned. The industrial economy has created more than 100 million "novel entities," or chemicals not found in nature, with somewhere between 40,000 and 350,000 in commercial use and production, the report says. But the environmental and human health effects of this widespread contamination of the biosphere are not widely appreciated, in spite of a growing body of evidence linking chemical toxicity with effects ranging from ADHD to infertility to cancer. "I suppose that's the biggest surprise for some people," Harry Macpherson, senior climate associate at Deep Science Ventures (DSV), which carried out the research, told the Guardian.