in just three weeks on december 15th. no sign of that deal yet, ali. bill, good to see you my friend. thank you for joiningee us toda. bill neely in london. climate scientists are sounding the alarm saying our planet may be on the verge of crossing several tipping points. in the journal of nature scientists suggest global warming is becoming irreversible in some places. some of those places include rapidly melting ice sheets in the eastern and western portions of antarctica and the loz of the amazon rain forest because of deforestations and drought. drastic action to take greenhouse gas emissions to offset what could be dire consequences of globalbe warmin. the report shows despite a near global pledge to reduce greenhouse gas emissions, they reached a new high. monica medina is the founder.