Human activities include industrial production, burning fossil fuel, mining, cattle rearing or deforestation. Industrial have been using fossil fuels for power machines. For example, when we buy a mobile phone, the process of making mobile phone have involve machines and machines uses fossil fuels, during the process carbon dioxide is releasing to the atmosphere.
As the temperature increase, the ice at the North Pole will melt.
Once the ice melt the first effect will be raise on sea levels because the melting glaciers become oceans.
According to the National Snow and Ice Data Center “if the ice melted today the seas would rise about 230 feet”.
It affects many low lying areas such as the Netherlands.