Scientists Warn Humans Are, Pushing Earth Outside , 'Safe Operating Space'.<br />According to scientists, several key indicators of <br />planetary health show that human actions <br />have pushed Earth into a danger zone.<br />29 scientists from eight countries <br />analyzed "planetary boundaries," <br />which ensure a stable and livable Earth.<br />CNN reports that the scientists <br />warned that humans threaten to trigger <br />dramatic changes in Earth's climate.<br />The "planetary boundaries" researchers looked <br />at include biodiversity, freshwater use and <br />the impact of synthetic chemicals.<br />According to the report, published in the journal <br />'Science Advances,' human actions have breached six of these <br />thresholds, pushing the Earth outside "safe operating space.".<br />On the bright side, the ozone layer is on track <br />to recover completely, thanks to international <br />efforts to limit the use of ozone-depleting chemicals.<br />According to Simon Lewis, a professor of global change science <br />at University College London in the U.K., the report comes as, "a strikingly gloomy update <br />on an already alarming picture.".<br />Humans are destroying biodiversity, <br />changing the climate and polluting <br />our home to such an extent that <br />we’ve pushed our planet out of <br />the stable conditions that enabled <br />human civilizations to emerge, Simon Lewis, professor of global change science <br />at University College London in the U.K., via CNN.<br />It couldn’t be a more stark warning, Simon Lewis, professor of global change science <br />at University College London in the U.K., via CNN.<br />According to Andrew Fanning, a visiting research fellow at the University of Leeds in the U.K., the report provides "strong evidence-based support" for taking action.