A record high. Its risen to just under 21 Degrees Celsius, or nearly 70 fahrenheit, in august. Thats far above the average for this time of year, and researchers say it could have serious consequences for the global environment. Our Climate Editor Justin Rowlatt reports. Theyve been taking measurements of Ocean Temperatures here in plymouth for more than a century and for the last 50 or so years, theyve showed a slow but steady increase up about a third of a degree a decade. Have we got a reading for today yet, do you know . I heard them Say Something around 18 or 19 which is. Wow . Four Degrees Higher than it should be. Its been a similar pattern globally. Rising Sea Temperatures and increasing numbers of Marine Heatwaves, and it has just reached a new peak 20. 96 Degrees Celsius the highest Global Average sea temperature ever recorded. The worlds warming waters are a dangerous trend, say experts. Peoples perspective is that the ocean, you know, its so big, its so vast that it can buf