Canadian Politics Today

MH, hopefully this isn't behind a paywall....but I think you need to check this infographic out and perhaps read the associated article.

https://www.nature.com/articles/s41893-018-0194-x/figures/1

Like, the_squid, you are quoting reputable scientists via a reputable journal

Abstract
Today, more than ever, ‘Spaceship Earth’ is an apt metaphor as we chart the boundaries for a safe planet1. Social scientists both analyse why society courts disaster by approaching or even overstepping these boundaries and try to design suitable policies to avoid these perils. Because the threats of transgressing planetary boundaries are global, long-run, uncertain and interconnected, they must be analysed together to avoid conflicts and take advantage of synergies. To obtain policies that are effective at both international and local levels requires careful analysis of the underlying mechanisms across scientific disciplines and approaches, and must take politics into account. In this Perspective, we examine the complexities of designing policies that can keep Earth within the biophysical limits favourable to human life.

Again - it is the media and activists who are advancing unsupported claims, not scientists.