Tag: Conservation Corner

Conservation Corner: Lights and our living world

  Pauline Lee Our bodies operate optimally when we maintain regularity in our sleeping and waking hours. This regularity correlates to the 24-hour dark and light cycles in nature, also known as the circadian rhythm. With modern improvements in providing inexpensive artificial light, man has increasingly disturbed the dark cycle not only for himself, but…

Conservation Corner

Recycling treasures Pauline Lee Isn’t it easy to spend $5, $10, $20 or more to buy a book, a CD or DVD, or a jigsaw puzzle as a treat for yourself or someone special? All these objects are well made and can tolerate being used multiple times. Thus, it’s no wonder some conservation-minded residents in…

Conservation Corner

 South Phoenix Community Farm Pauline Lee Community Supported Agriculture (CSA) is a movement across the country to connect local farmers with their community. In our metro area, Spaces of Opportunity (Spaces) was created in 2015 by two non-profits, Desert Botanical Garden and Cultivate South Phoenix, to use urban farming in the southwest part of Phoenix…

Conservation Corner

Pauline Lee The first two parts of Our Changing Environment have shown us that life is fragile and can survive only in conditions with limited variability. Five mass extinctions of life when over 90% of living species became extinct occurred between 66 to 500 million years ago due to natural catastrophic events. Afterwards, new species…

Conservation Corner

Our Changing Environment Part 2: Pauline Lee In recent decades, natural disasters such as drought, floods, extreme storms on land and along seacoasts and wild fires have disrupted human lives, destroyed natural environment and harmed all living species. According to climate scientists, such catastrophes, occurring with evermore ferocity and greater frequency, are caused by increasing…

Conservation Corner

Mass extinction events on Earth – Part 1 Pauline Lee In the beginning of the 19th century, people didn’t even believe living species could become extinct. Thus, when Lewis and Clark explored the unknown American Northwest, Thomas Jefferson was surprised no live mastodon was found, even though their bones had been found in New York.…

Conservation Corner

Pesticide – Part 2 Pauline Lee Man has made chemicals to eliminate insects, animals or weeds that are considered to be pests by us. Unfortunately, these pesticides also harm man, other beneficial beings and our environment. Some alternative methods to fighting the pests commonly found around our homes will be discussed. There are several natural…

Conservation Corner

Pesticides – Part 1 Pauline Lee In 1962, Rachel Carlson made the world aware that pesticides can be detrimental to our health and our environment, documented in her book, Silent Spring. These man-made chemicals were created to kill unwanted pests that spread diseases or reduced crop yields in farms. The chemicals, however, killed pests and…

Conservation Corner

Sugar and your health Pauline Lee Since the beginning of the industrial revolution, better economic conditions in the Western world have been accompanied by the appearance and proliferation of chronic health problems that require a long incubation period to develop into life-threatening diseases. Typically, health problems begin with periodontal disease (tooth decay). Then for people…

Conservation Corner

Sustainability of our food production – part 2 Pauline Lee Modern agriculture has increased production several-fold in the last half of the 20th century by mechanization and chemicalization, both of which require large energy input. At the same time, the efficiency of modern agriculture has actually decreased drastically if one takes into account the concomitant…