Thickness of ice is one of the key indicators of global warming, but it is difficult to take these measurements accurately as direct methods can not be used on a large scale. An international team of scientists make an effort to standardise these measurements and evaluate the various current models.
पूर्व के कुछ वर्षों में दिल्ली एवं मुंबई के वातावरण में मीथेन के स्तर में वृद्धि इंगित करता छायाचित्र।
श्रेय: अध्ययन लेखक