US and China to sign Paris climate deal in April. Countries responsible for 40% of worldâs carbon emissions to formally approve historic pact and pursue efforts to limit warming to 1.5C, reports Climate Home. Done deal! US President Barack Obama with President Xi Jinping of China at the Paris climate conference in Le Bourget, France. The two leaders will soon meet in Washington DC. China and the United States, the worldâs two leading carbon polluters, said on Thursday they planned to formally join the Paris climate agreement in 2016.
A: According to the Institute for Marine Mammal studies, dolphins can generally hold their breath for as long as  10 minutes. They normally breathe about four to five times per minute.
In terms of how long a dolphin can dive for some dolphins are able to hold their breath for up to 20 minutes before coming up for air while other dolphins are only able to hold their breath for 5 â 7 minutes.The length of time that a dolphin can hold its breath for varies from one species to the next.n terms of how long a dolphin can dive for some dolphins are able to hold their breath for up to 20 minutes before coming up for air while other dolphins are only able to hold their breath for 5 â 7 minutes.