Emily Su- Cute Polar Bears (And How To Save Them)
What's the first consequence of global warming that comes to mind? You don't need to be an environmentalist to know that an increase in temperatures will cause the melting of arctic ice. However, did you know that the melting of arctic ice could potentially cause a drastic increase in sea levels, loss of habitat for arctic life, and more intense natural disasters? Since the earth is an intricately connected system, the melting of arctic ice could cause issues for all walks of life: not just a few polar bears.
A recent 2018 study has found that glaciers from the Arctic are the world's leading contributes to rising sea levels. According to this study, ice from the arctic alone is adding over a millimeter of water to the ocean every year. While this may not appear significant, this also means that the total Arctic loss at present is 447 billion tons of ice per year, or about 14,000 tons of water being dumped into the ocean per second: that's a lot of water! Additionally , data from NASA suggests that our sea are rising at a rate of about 3 millimeters a year (a combination of melted ice from the arctic/antarctic and the natural expansion of ocean water with rising global temperatures).
What else happens to our planet as sea levels rise? For one, the all-important albedo effect is prevented from taking, well, effect- as we know, surfaces like ice and snow (with high albedo) reflect about 80% of the Sun's energy. If these white spots vanish into the ocean, materials with lower albedo (such as asphalt and the ocean) will absorb the heat that is typically reflected by ice and snow. This means higher temperatures both on land and in the sea, causing more disruptions overall. Additionally, many scientists believe that a warming arctic may affect extreme weather events, especially in North America and Europe. Research shows that extreme winter weather is two to four times more likely in the Eastern Untied States when the Arctic is unusually warm, and that a warming Arctic disrupts the jet stream; thus, we get more extreme weather that lingers for a longer period of time. Residents in states such as Florida, New Jersey, and Maryland are already experiencing more flooding due to rising sea levels and severe weather. Soon, more an more cities will begin to evacuate. In every respect, disaster appears inevitable if we do not make a change.
Surprisingly, there are a variety of "little things" we can do to slow the effects of the melting of arctic ice. By simply choosing reusable products, conserving gas, and even using less water, we can minimize our contribution to climate change and conserve energy. After all, climate change is an issue that affects us all, whether we choose to believe it or not. Even if we aren't concened abotu the effects of global warming on humans at the present moment, we can put in a little effort for these guys, right?
Questions:
Can you think of any other ways that we can slow the melting of arctic ice caps?
What are some effective ways that we can get people to realize that this problem affects all of us?
Can you think of any recent disasters that could have been attributed to this issue? How can we prevent similar effects in the future?
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Comments
This post was very informative! I was shocked at the amount of water that comes from Arctic ice caps and its effects. The only way to control this unissued is to raise awareness of the effects our daily activities have on Earth. If we can minimize our contributions to global warming, we can ensure that polar bears will not face the consequences of global warning and melting ice caps.