鹰，无限空间的帝王
How could I have predicted what this world would be like? My ancestor’s piercing eyes could not have...
The rise in the earth’s temperature
Are temperatures rising in all regions of the world?No, not quite. It depends in part on the time...
The top 10 most polluted cities in the world
The degree of pollution is generally measured by taking into account the level of particulate matter present in...
The sea level is rising too fast
Scientists have not yet understood all the mechanisms involved in the phenomenon of rising sea levels, but they...
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