The most significant changes would take place low-lying areas where flooding would occur. While flooding is often debated it will in fact take place if the polar ice caps melted. It is true that the North Pole would not cause flooding because this ice is floating in water. Therefore, this ice melting would not increase ocean levels. Where there is room for concern is in Antarctica and other land masses with significant ice coverage where the ice is not already contributing to ocean level. If this were all to melt it would run off into the oceans and dramatically change the sea level.
Rising sea levels would have a huge impact on ecosystems. First of all the salinity levels in the oceans could change and lead to loss of marine life. Depending on the high amount of change this could wipe out many species including those that are key stone species in food chains thus affecting fishing industries and human life. Also there would be a substantial amount of habitat loss in the Arctic and areas at low elevations. Many low lying countries, like island chains, could be completely under water.
Human life would be affected by the ice caps melting. Depending on the severity of flooding and other changes there may not be a viable food source for the planet. This can be taken into account by the loss of marine life and farmland.
As far as our science experiment is concerned I wonder if there would be some way to implement the factor of ice melting that is on land and not floating in the sea. Some additional questions I might consider are as follows:
- Is there a way to incorporate salinity testing / salinity changes into this experiment?
- What reading material could I use to engage students prior to beginning the experiment?
- What could be added to this experiment to induce further learning, analyzing or creating like the top tier of Blooms Taxonomy?