#Science

Frequently Asked Questions: the Northern Lights Check out our guide with the most popular questions about the incredible aurora borealis.

Changing climate in Antarctica With the beginning of the industrial revolution in the early 18th century humans began pouring CO2 into the atmosphere – first from burning coal, and later from oil and gas. Since then this period of anthropogenic climate change has led to a global warming of about 1˚C.

Known in Spanish as the Península Valdés, this Patagonian nature reserve is the temporary home to migrating colonies of whales, penguins, and dolphins throughout the year. Meanwhile, on land, elephant seals, sea lions, and other native Patagonia species can be found all year round. In addition, an estimated 181 bird species can also be spotted in and around the peninsula.

Expand your horizons and be part of unique expedition cruises in the seas of the Caribbean, Central America, and South America.

Travel to the very edge of the world. Ushuaia, Argentina, is a small coastal city that’s often the stopping-off point for people en route to Antarctica or Tierra del Fuego National Park. However, the world’s southernmost city (at least according to the Argentineans) offers all kinds of adventures.

Headed to Buenos Aires and need a travel guide to plan your trip? The Argentine capital is buzzing with life and overflowing with culture. Knowing where to start can be daunting. Here are our top suggestions for the best things to do in Buenos Aires.