In this chapter, descriptions are provided on how, by our actions, we humans have altered the composition of the atmosphere. Many of these changes have occurred as a result of industrial processing ...

These can change the composition of the air we breathe by reducing the amount of oxygen it contains. Find out why your air may be more polluted than you think and what you can do to improve its ...

So why do so many life-forms breathe oxygen? There are probably thousands of kinds of metabolisms, or chemical processes that ...

FRESH AIR AS A SOURCE OF NUTRIENTS We usually associate nutrition with what we eat, but growing evidence suggests that the air we breathe also ... hazardous levels, the composition of inhaled ...

AIR-BORNE: The Hidden History of the Life We Breathe, by Carl Zimmer At the start of 2020, a small team of scientists tried and failed to convince public health organizations that Covid-19 was ...