100% (all living organisms of them have a rage of tolerance)
The people who are recommended are people who want to take it. Theses exist to confuse people.
<span>Evidence that human activities influence the global climate system continues to accumulate. Data indicate that Earth's surface temperature is rising. This increase can be attributed, in part, to human-caused increases in greenhouse gases such as carbon dioxide. It is becoming apparent that these climatic changes are negatively affecting physical and biological systems worldwide.</span>
The Nebula would be your answer, it is a cloud of dust and gas in outer space :)
