The temperature of the oceans billions of years ago is not hotter than today
Some geologists believe that ancient ocean temperatures were extremely hot (at least 70 degrees Celsius), while some thought it was close to today's heat (about 15 degreesClimate change will continue over the next 1,000 years
The impact of elevated CO2 levels on Earth's atmosphere will create unstoppable effects on the climate for at least 1,000 years.