Converse Opinions on Carbon Dioxide/Climate Change

In celebrating the International Day of Happiness, the United Nations sponsored an event with hip hop singer and producer Pharrell Williams to talk about climate change. During the event, Pharrell said, "Protecting our planet is fundamental to the pursuit of human happiness," Pharrell said, telling the enthusiastic crowd, "We only have one home and there's climate change... If you don't (take) care of your home, you don't have a life, and we have to transition from climate change to climate action."
Conversely, Patrick Moore, cofounder of Greenpeace and presently co-founder, chair, and chief scientist of Greenspirit Strategies, said among other things, "By its constitution, the IPCC has a hopeless conflict of interest. Its mandate is to consider only the human causes of global warming, not the many natural causes changing the climate for billions of years. We don’t understand the natural causes of climate change any more than we know if humans are part of the cause at present. If the IPCC did not find humans were the cause of warming, or if it found warming would be more positive than negative, there would be no need for the IPCC under its present mandate. To survive, it must find on the side of the apocalypse."
He also said, "I am skeptical humans are the main cause of climate change and that it will be catastrophic in the near future. There is no scientific proof of this hypothesis, yet we are told “the debate is over” and “the science is settled.”
And, "There is a powerful convergence of interests among key elites that support the climate “narrative". Environmentalists spread fear and raise donations; politicians appear to be saving the Earth from doom; the media has a field day with sensation and conflict; science institutions raise billions in grants, create whole new departments, and stoke a feeding frenzy of scary scenarios; business wants to look green, and get huge public subsidies for projects that would otherwise be economic losers, such as wind farms and solar arrays, and the Left sees climate change as a perfect means to redistribute wealth from industrial countries to the developing world and the UN bureaucracy."
Finally, "At [the present] 400 parts per million [carbon dioxide], all our food crops, forests, and natural ecosystems are still on a starvation diet for carbon dioxide. The optimum level of carbon dioxide for plant growth, given enough water and nutrients, is about 1,500 parts per million, nearly four times higher than today. Greenhouse growers inject carbon-dioxide to increase yields. Farms and forests will produce more if carbon-dioxide keeps rising." "The IPCC’s followers have given us a vision of a world dying because of carbon-dioxide emissions. I say the Earth would be a lot deader with no carbon dioxide, and more of it will be a very positive factor in feeding the world. Let’s celebrate carbon dioxide."