My fear is the "scientific hubris of today". It goes like this: "Yesterday everyone was evil and dumb, and destroyed <insert your personal pet agenda>. Today, we are much smarter, and we are enlightened and know all things that needed to be done. Our intellect is leaps and bounds over those troglodytes from last year."
Then, a few years down the road we find out again that those brilliant minds were not exactly aware of all the details, and have made things worse. (Or, as now it is starting to trickle out, those brilliant minds lied and falsified their studies.)
e.g., you know why we switched to plastic bags from recycled paper bags in grocery stores? Allan Savory in Zimbabwe and saving the forest by killing elephants? Monarch butterflies and the wrong milkweed? The Osborne tire reef?
(Of course, I know I am an outlier. I make weighted matrices with dozen or more rows to decide which vegetable I should ferment next. It is likely going to be green tomatoes, but carrots are mighty close this year.)