 pace but then since the year 2000 because of these ice sheets melting we've seen that accelerate more so it's kind of crazy when you think about the time scale right because you know it takes a long time for an ice sheet to melt so forth that could happen over a longer period of time and here we're seeing it in a matter of decades and as you say in your report this isn't something that humans are going to notice with their bare eyes but it matters right what's going to be affected by a slower global rotation