> I find it far easier to believe that the consistent global drop in insect populations has far more to do with deforestation and chemical disbursement rather than fractions of degrees of warming that we've seen so far.
You might find it easier to believe, but that doesn't make it so. Ecosystems are interconnected. A degree of warming might not do much to a loan insect in a cage, but a degree can contribute a lot to the spread and range of bacterial and fungal pathogens of insects. It can change how plants behave (they can't get up and move, so have to respond physiologically to survive in the same location), and that change impacts insects. Competitors for the same resources may respond better to temperature rise or other climate related changes. Climate change also changes farmers' behaviour - more pests due to warmer conditions can mean more sprays, which have unintended consequences.
You might find it easier to believe, but that doesn't make it so. Ecosystems are interconnected. A degree of warming might not do much to a loan insect in a cage, but a degree can contribute a lot to the spread and range of bacterial and fungal pathogens of insects. It can change how plants behave (they can't get up and move, so have to respond physiologically to survive in the same location), and that change impacts insects. Competitors for the same resources may respond better to temperature rise or other climate related changes. Climate change also changes farmers' behaviour - more pests due to warmer conditions can mean more sprays, which have unintended consequences.