Since the early 1990s, advances in toxicology have allowed scientists to detect traces of adulterant substances in everyday products – even down to parts per billion concentrations. We can now detect the presence of harmful ingredients at levels so low that they actually cause no harm. Nonetheless, we get scared. We are now able to overreact to harmless, negligible sources of contamination and flock to ‘natural’, ‘organic’ and ‘chemical-free’ alternative products at elevated prices instead. This urge is driven in part by a set of interesting psychological quirks called the naturalness preference or biophilia. While exposure to many aspects of nature improves our physical and mental wellbeing, marketers are taking advantage of our naturalness preference by selling us ‘organic’ and ‘natural’ products with no functional advantage, sometimes to the detriment of the environment, and that have the unfortunate added effect of peddling a fear of conventional products that do not make such natural connotations. This fear of chemicals, exaggerated by marketers, has led some of us to seek nature in the form of expensive consumer product, which offer almost none of the benefits of spending time outdoors in real nature (which is free of charge). We thus chase nature in the wrong form. We feel guilt, anxiety and mental stress from being coaxed into paying a hefty premium price for "natural" products that are neither safer nor more effective than conventional ones, and forget to appreciate real nature in the process. This book explores the history of chemical fears and the recent events that amplified it. It describes how consumers, teachers, doctors, lawmakers and journalists can help make better connections with the public by telling stories that are more engaging about chemistry and materials science. Written in a sympathetic way, this book explains both sides of the argument for anyone with an interest in science.

Marcelo Gleiser has had a passion for science and fishing since he was a boy growing up on the beaches of Rio de Janeiro. Now a world-famous theoretical physicist with hundreds of scientific articles and several books of popular science to his credit, he felt it was time to connect with nature in less theoretical ways. After seeing a fly-fishing class on the Dartmouth College green, he decided to learn to fly-fish, a hobby, he says, that teaches humility. In The Simple Beauty of the Unexpected, Gleiser travels the world to scientific conferences, fishing wherever he goes. At each stop, he ponders how in the myriad ways physics informs the act of fishing; how, in its turn, fishing serves as a lens into nature's inner workings; and how science engages with questions of meaning and spirituality, inspiring a sense of mystery and awe of the not yet known. Personal and engaging, The Simple Beauty of the Unexpected is a scientist's tribute to nature, an affirmation of humanity's deep connection with and debt to Earth, and an exploration of the meaning of existence, from atom to trout to cosmos.

Unnatural and unhealthy processed foods are everywhere, and they make eating a balanced diet particularly difficult. Chieffi shows how you can follow the Paleo diet during pregnancy and beyond-- safely and successfully. You'll be vibrant, fit, and happy while nourishing your baby and promoting healthy development.

A landmark in reference publishing and overseen and authenticated by the Smithsonian Institution's National Museum of Natural History, Natural History presents an unrivaled visual survey of Earth's natural history. Giving a clear overview of the classification of our natural world-over 6,000 species-Natural History looks at every kingdom of life, from bacteria, minerals, and rocks to fossils to plants and animals. Featuring a remarkable array of specially commissioned photographs, Natural History looks at thousands of specimens and species displayed in visual galleries that take the reader on an incredible journey from the most fundamental building blocks of the world's landscapes, through the simplest of life forms, to plants, fungi, and animals.

An “essential” (Times UK) and “meticulously researched” (Forbes) book by “the skeptical environmentalist” argues that panic over climate change is causing more harm than good Hurricanes batter our coasts. Wildfires rage across the American West. Glaciers collapse in the Artic. Politicians, activists, and the media espouse a common message: climate change is destroying the planet, and we must take drastic action immediately to stop it. Children panic about their future, and adults wonder if it is even ethical to bring new life into the world. Enough, argues bestselling author Bjorn Lomborg. Climate change is real, but it's not the apocalyptic threat that we've been told it is. Projections of Earth's imminent demise are based on bad science and even worse economics. In panic, world leaders have committed to wildly expensive but largely ineffective policies that hamper growth and crowd out more pressing investments in human capital, from immunization to education. False Alarm will convince you that everything you think about climate change is wrong -- and points the way toward making the world a vastly better, if slightly warmer, place for us all.

Updated for 2020, Intermediate readers distinguish between natural and man-made objects.