We have seen that outcomes of global warming impact different spots of the Earth differently. Despite this divergence in the outcomes, yet it is called global warming. Why? How are the outcomes globally interconnected?
Recently, Harvard researchers found that even global sea-level rise could be sensed differently around the Earth (1). This can be explained simply by the gravitational law of Newton. According to this law, objects attract each other. As such, the Earth attracts us and we attract the Earth but since we are lighter, the Earth never visibly moves when we jump off from a height. With the same reasoning, once an ice sheet melts, the attraction between this object and the surrounding water dissipates. Therefore, the sea-level in the very same place that the ice sheet used to stay, goes down temporarily. At the same time, the sea-level rises far from the ice sheet because more water has been added to the ocean. For this reason, if Greenland melts down, Newfoundland will be flooded while the sea-level at Greenland reduces. That is how global warming causes a domino of interconnected problems that are being unfolded every day. Some of these global-scale outcomes are counter-intuitive but they have a scientific reason. These non-uniform outcomes of global warming cannot be excuses to deny climate change. While on one coastline sea-level rises, in another coastline it might decrease. Consequently, the climate of Greenland matters to Canadians!
Another example is the recent behavior of Arctic watersheds. While previously forest fire occurrence was every hundred years, recently forest fires are observed almost every year. Once a forest fire occurs in the Arctic, the chemistry of streams in the area changes. The concentration of carbon and nitrogen depends on the dissolved particles in the stream which can dramatically change when trees are burnt. This effect can remain in the area for several decades and it impacts not only the residents of the Arctic but the residents that live far from the Arctic. The streams starting from the Arctic finally drain to water bodies that are the main source of drink water for many people. Therefore, a forest fire kilometers away can alter water qualities (2).
As we see, global warming is really a global problem. A global problem can only be solved by global cooperation between nations, governments, and organizations that are active in the fight against climate crises.