Gera,
1) the ocean water level is rising, it's a fact. It's up about 1 foot over the last 100 years. And 470 feet over last 10,000 years.
I think the current rate is about 1sm/year
2) Polar bears population varies depending on a specie, some species are dying and some are multiplying
3) you are right, there is no conclusive proof that humans are causing temperatures to rise, yet there is an absolute proof that those temperatures are rising.
that fact that you want to believe something does not make it a fact.
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