[PAR] [TLE] Vladimir Putin [SEP] Vladimir Vladimirovich Putin ( ; Russian: Влади́мир Влади́мирович Пу́тин ; ] ; born 7 October 1952) is the current President of Russia, holding the office since 7 May 2012.  He was Prime Minister from 1999 to 2000, President from 2000 to 2008, and again Prime Minister from 2008 to 2012.  During his second term as Prime Minister, he was the Chairman of the ruling United Russia party. [PAR] [TLE] Yuri Izrael [SEP] Yuri Antonovich Izrael (Russian: Юрий Антониевич Израэль ; 15 May 1930, Tashkent – 23 January 2014, Moscow) was a vice-chairman of the Intergovernmental Panel on Climate Change (IPCC) until September 2008, when the new bureau was elected.  He was the "most influential scientific adviser" for Vladimir Putin, the former president of Russia, according to CNN.
[PAR] [TLE] Vladimir Putin [ SEP ] Vladimir Vladimirovich Putin ( ; Russian : Влади́мир Влади́мирович Пу́тин ; ] ; born 7 October 1952 ) is the current President of Russia , holding the office since 7 May 2012 . He was Prime Minister from 1999 to 2000 , President from 2000 to 2008 , and again Prime Minister from 2008 to 2012 . During his second term as Prime Minister , he was the Chairman of the ruling United Russia party . [PAR] [TLE] Yuri Izrael [ SEP ] Yuri Antonovich Izrael ( Russian : Юрий Антониевич Израэль ; 15 May 1930 , Tashkent – 23 January 2014 , Moscow ) was a vice - chairman of the Intergovernmental Panel on Climate Change ( IPCC ) until September 2008 , when the new bureau was elected . He was the " most influential scientific adviser " for Vladimir Putin , the former president of Russia , according to CNN .
According to whom was Yuri Izrael the  "most influential scientific adviser" to the current President of Russia?
According to whom was Yuri Izrael the " most influential scientific adviser " to the current President of Russia ?
CNN
CNN