With the start of the new year, start making some changes in your lifestyle geared towards helping the planet.
This year the tree was decked out with 22,000 lights. Here's a look.
Some 100 people joined in a march against climate change in San José, a day before international climate talks start in Paris. "We want serious decisions and and real compromise to stop the planet's temperature rise," said conservationist Jorge Mora Portuguez.