From AOL news:

PARIS (Jan. 31) - The Eiffel Tower’s 20,000 flashing lights will go dark for five minutes Thursday evening, hours before scientists and officials unveil a long-awaited report on global warming .

The darkening of the landmark in the City of Light comes at the urging of environmental activists and is timed to coincide with Friday’s release of the major report warning that Earth will keep getting warmer and presenting new evidence of humanity’s role in climate change.