Official travel guide from the Hong Kong tourism board that includes tourist information on attractions, events, shopping and dining, vacation holiday packages, street maps, virtual tours and travel planning itineraries.

If you want to see what our failing governments are doing to protect our well-being as well as our one and only planet, check this out.

Free time and date related information and services with world clock, calendars, the meeting planner, time zones, weather, timers, and more.

Our network of more than 20,000 technical experts advancing science-based solutions for a healthy planet and a safer world.

The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over ...

Bilateral symmetry is an unspoken assumption in aircraft design. Anything in nature that flies, from the smallest insect to the largest bird, possesses symmetry. But birds don't fly supersonic.

You can find everything you need to know to plan your stay in Athens and experience it in full.

Provides context on how biodiversity has changed in the past; the state of wildlife today; and how we can use this knowledge to build a future path where humans and other species can thrive on our shared planet.

Our planet now faces a global extinction crisis never witnessed by humankind. Scientists predict that more than 1 million species are on track for extinction in the coming decades.

An on-line resource to find all area code information within the North American Numbering Plan.