Quick news: Swedish media seem very silent on the topic (EDIT: it appears I was just fast – several news pieces have come since), as court rules grocery chain Coop is forbidden from continued use of its marketing video “The Organic Effect” launched 2015, or the arguments from that campaign, including lines like ‘we’re eating pesticides’ and ‘chemicals removed from my kids bodies’ or ‘organic food is grown without chemical pesticides’. If they use the arguments or the video, but continue to fail to provide evidence for such claims, they are threatened by a fine of whooping one million krona (about 100 000 Euro / almost 120 000 US dollars). In addition, they must cover the claimant’s court costs.
Two new bee papers were published just a few days ago. Below I will take a closer look at one of them, the larger European study, partly funded by pesticide companies but performed by an independent research lab, and it was was aimed to be a more comprehensive test of neonicotinoids. The other one was five month field study in Canada, completed with a year-long lab study where they observed some negative health effects under field-similar but constant exposure conditions, especially when combined with a fungicide. More about the Canadian study can be read in an analysis by The Mad Virologist.
The European study went on for two years in three countries, spanning over 33 sites. A whooping 88 variables were measured (different health measures, different bees, etc). but only eight of them came out with a statistically significant difference. Three variables actually showed a significant beneficial correlation between neonicotinoid treatments and bee health, whereas five correlated with more harmful results. However, 18 results had to be dismissed altogether because the Varroa mite killed off many UK hives. But the study did not choose to track disease rates as variables.
My daughter demanded I draw another comic, so I’m sharing with you this macabre moment of innocent deduction, which invited some reflection on why we care so deeply for the bodies of our dead.
I am a biologist, and I love to tell my kids about the ways their bodies work, including how fascinating it is that millions of strange little organisms live inside their gut and help with the digestion of their food.
It’s priceless when you later get these questions that show just how much they think about the things we have discussed, and how they try to apply their knowledge-of-the-world-so-far into the new concepts they’ve learned.
Our original conversation about enzyme scissors was a bit longer than a comic easily permits, so let me elaborate:
It’s not exactly like a knife, but there are many different kinds of little molecular machines, that bind to their very own specific bits of food, that add little molecules that persuade parts of the big food molecules to go their separate ways.
I sympathise. How can anything be smaller than a really tight squeeze? Unfathomable. It’s interesting how our perception, which is quite useful for observing phenomena happening at our scale, gets bent over backward and whirled around when we try to apply it to either things that very very big or small (or hot or dense).
Talking about the universe with kids is a lot of fun! Continue reading
Thanks to their tireless search for the ultimate things in life (that is, the constant bombardment with questions like ‘What’s the smallest thing you know of in the whole world?’ and ‘What is the hottest thing you know?’) kids are little information sponges.
This spontaneous exchange between our 5 and 3 year olds sure made their physicist daddy (and biologist mommy) proud. Continue reading