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Greenhouse Gases and Grave Stones

20 Mar 2017

Acid rain! Many gravestones are made of marble, which dissolves in acid. This means that if rain water is acidic, every time there is some precipitation, a bit of the marble is worn away. Acid rain...

Why isn't the carbon dioxide from breathing a concern for global warming?

20 Mar 2017

The carbon dioxide we exhale does not contribute to global warming for the simple reason that we also take up an equivalent amount of carbon dioxide from the air, albeit indirectly. Everything we...

Why has California issued a health advisory about eating fried grasshoppers covered with chili - a traditional Mexican treat?

20 Mar 2017

Worry about contamination with lead! Chili powder is at the heart of Mexican cuisine and finds its way into numerous foods ranging from candies and salsa to fried grasshoppers. Unfortunately...

Guano is Back

20 Mar 2017

The other day, at the garden center, I noticed a box of fertilizer announcing that it contained a "natural" fertilizer… guano. In fact, before synthetic fertilizers, such as ammonium nitrate -...

Benzene in your car - and it's not in the gas tank!

20 Mar 2017

Everyone knows that driving car is a risky business but what about just getting into one? Especially on a hot day! And we’re not talking about burning your rear by depositing it on the plastic seat...

The Environmental Cost of Meat

20 Mar 2017

We know what we should be doing if we want to be environmentally conscious. Recycle, compost, use public transport more, insulate better, shop with reusable bags. But here is something that is...

Alfalfa and Biotechnology

20 Mar 2017

Think of alfalfa and you probably visualize a salad adorned with the sprouts of this legume served up in a California style restaurant. But that is a minuscule use of this plant. The prime use of...

Pesticides in Organic Produce

20 Mar 2017

You’ve heard of a tempest in a teapot. This is a hurricane in a thimble. I’m talking about a study carried out by Canada’s Food Inspection Agency that found pesticide residues in organic produce....

Phytophotodermatitis and the Giant Hogweed

20 Mar 2017

“Phyto” derives from the Greek word for plant, “photo” from light and “derma” from skin, so “phytophotodermatitis” is a skin reaction initiated both by exposure to light and to some plant material....

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