Vast fossil fuel deposits in Sibera and Northern Canada indicate that at one time lush vegetation grew there. Localized fossil remains indicate a variety of animals thrived there too. Nurseries erect green houses to increase their products for sale, not kill plants and employees. For sure, a climate that would support a jungle in Sibera would be very problematic and I am in no way suggesting we strive to return to that condition, but let's be honest when discussing gloom and doom climate change. A rise in sea level might flood Miami Beach, which would be a huge financial and cultural crisis, but not the end of life on the planet. There are other serious things that are being ignored while we focus on greenhouse gases. Far more oxygen is produced by plankton in the sea than plants on land. Kill the plankton by dumping chemicals in the ocean and everything dies, even the cockroaches! I worry that some company may develop the "ultimate" pesticide or herbicide, which will eventually make it down the rivers and into the sea, where live the plankton. Even manufacturing solar panels puts contaminants into the environment. When these are made in countries who don't control toxic waste (and many are), the ultimate cost to the planet is swept under the proverbial rug. It is all too easy and comfortable for the affluent to live by the old adage, "out of sight-out of mind." Rampant consumption or destruction of any limited resource is foolish and there is no shortage of fools that will do just that if we don't work to curb their short-sighted selfishness.