The <a href="https://en.wikipedia.org/wiki/Kyoto_Protocol" id="mwAR8" rel="mw:WikiLink" title="Kyoto Protocol">Kyoto Protocol</a> comes into force, following its <a href="https://en.wikipedia.org/wiki/Ratification#Ratification_of_an_international_treaty" id="mwASA" rel="mw:WikiLink" title="Ratification">ratification</a> by Russia.