WORLD — Scientists are warning the public that a chain of domino events could take place if global temperatures continue to rise.<br /><br />A study published in the Proceedings of the National Academy of Sciences of the United States of America says Earth is approaching "hothouse" conditions if global temperatures rise more than 2 degrees Celsius.<br /><br />Scientists also stated that once temperatures hit the tipping point, where Earth's natural systems will be triggered, this will further increase global warming.<br /><br />Right now, the earth's forests, land and other natural systems work to absorb around 4.5 billion tonnes of carbon, to prevent carbon from ending up in the atmosphere.<br /><br />However, if temperatures continue to warm the planet, these natural systems may end up releasing more carbon than they take in.<br /><br />In the report, the researchers warn rising temperatures could also lead to rising sea levels up to 60 meters from today's shorelines.<br /><br />Some places would become uninhabitable if the earth continues to get warmer and warmer.<br /><br />However, the researchers ended on an optimistic note, saying this catastrophe could be avoided if action is taken immediately to change how we are impacting Earth's natural systems.