Question

observation of global warming​

Answer 1

Answer:

We have lot of observations of the Earth surface warming during the last few decades. Supporting these are the indicators of warming, such as changes in the behavior and ranges of species [8], melting glaciers [9], rising sea level [10], vanishing sea ice [11], etc.  

Explanation:

Answer 2

We have lot of observations of the Earth surface warming during the last few decades. Surface temperature measurements over land and ocean satellite measurements ,weather balloon measurements , ocean temperature measurements and borehole measurements all show clear increase in the average temperature of the Earth. Supporting these are the indicators of warming, such as changes in the behavior and ranges of species melting glaciers rising sea levevanishing sea ice , etc.