IntroGlaciers have existed for millions of years and with the arrival of global warming they are threatened and challenged by warmer weather conditions and many of them have already melted and this has happened before, but normally there has been an ice age and the glaciers just grow back, but with the arrival of global warming the chance of an ice age happening has become much smaller, as has the chance that the glaciers that have melted grow again or create new ones. formation of glaciers. For my global perspective I will consider the Whitechuck Glacier in Washington which from about 1970 to 2011 retreated about 2 km and lost half its surface area. From my local perspective, I'll be covering the Fox Glacier, which in just the last 25 years or so has melted a fair distance of about 400 meters, by my best estimate, and is retreating again and may not slow down or stop . For my national glacier I will do the Tasman Glacier which is melting at a rapid rate and now has a large terminal lake in it and may not last long. glaciers around the world are melting or have melted and the melting of glaciers could be a warning that the Arctic or Antarctic could melt and this would have disastrous consequences with sea levels rising by more than 60 metres, but everyone thinks the possibility of it melting is very high little but I bet a few hundred years ago people thought the glaciers wouldn't melt and a lot of them are gone now so who knows what the future might hold if the temperatures and CO2 levels continue to rise, future generations could be in deep trouble. GlobalThe Whitechuck Glacier located in Washington has been retreating rapidly since the end of the "Little Ice Age," which was a period of colder climate but no ice booming and...... middle of paper... ....with tour groups spending so much extra money to make it safe, the cost of going to this incredible glacier will increase until it's not worth it go there and this will impact tourism and the glacier guides will probably stop and no one will be able to see this glacier which will be a real shame for me national case study I will be looking at the Tasman glacier located in Mount Cook national park which since the 90 has retreated about 180 meters per year and is now retreating even faster up to over 800 meters per year and will not stay here much longer, it already has a large terminal lake which did not exist in 1973 but now in 2008 it has a water volume of 3.4 billion cubic meters which is absolutely huge. the Tasman is the longest glacier in New Zealand it is 27 km long it is a huge glacier but this does not affect the speed at which the glacier melts and