Significant questions
about anthropogenic influences on climate remain.
Not exact matches
Discussion
about the «hockey stick» is conducted with considerable fervor in the public media, where this curve is often presented as if it were a proof, or even the most important proof, of
anthropogenic influence on climate.
If I remember correctly, it accounts for
about 1 % of
anthropogenic influence on climate change.
These finding are similar to those reported a few years ago by Ramanathan and Carmichael but grossly dissimilar to those from the U.N.'s Intergovernmental Panel
on Climate Change (IPCC), which says that black carbon is responsible for only
about 10 % of the total
anthropogenic warming
influence.
The summary related aviation's role relative to all human
influence on the
climate system: «The best estimate of the radiative forcing in 1992 by aircraft is 0.05 W m — 2 or
about 3.5 % of the total radiative forcing by all
anthropogenic activities.»
One quote in the paper caught my attention: «Striving for balance in reporting, US journalists have given equal prominence to voices confirming or denying the human
influence on the
climate, thus putting dis - proportionate emphasis
on doubt
about anthropogenic climate change ``.