No “knowledge” is needed to justify my stance, mamy.
The world needs, at best, a stable population but far more preferably, a managed decline. Many measures are in place to stop the consumption and burning of various things. Some of these measures are so ridiculously ineffective as to be laughable. Yet it is people that consume and burn things but no thought is given to the outrageous population growth that is currently being experienced (global population has trebled in the last fifty years). I cannot use an incandescent light bulb. Apparently they cause so much damage that it has been necessary to make their import and sale in Europe illegal. So perhaps I could ask this: what will cause the greater lasting damage to planet Earth – me burning a few 60w light bulbs or this couple having eighteen (and counting, apparently) children ?
So I stand by my stance. Couples having more than two children are introducing a threat to the planet – far more so than incandescent light bulbs. The greater the number of children the more profound the threat. Of course there will be occasions involving multiple births where more than two children are born to a couple. But generally there is no need for any couple to have more than two children (and I include in that couples who have a second or subsequent relationship and “need” more children). That’s the way to “save the planet”, not fannying about with light bulbs