Clouds: they are critical to the earth's balance | Photo: Shutterstock

Clouds play an important role in the climate system, and can warn us of what lies ahead. Learn how to identify cloud types.

Clouds provide shade, store water, and distribute heat from the equator to the poles. Their mechanisms are still not completely known, but their relevance to the earth's balance is unquestionable.

The World Meteorological Organization (WMO) created an International Cloud Atlas that recognizes ten types of cloud. Clouds can appear at between 6,500 feet (2,000 meters) and 16,500 feet (5,000 meters).

Sea Bubbles: a battery-operated watercraft created by Alain Thébault and Anders Bringdal

The Sea Bubbles are ready to "fly on water." The ultimate eco-friendly mean of transportation will see the light of day in June 2017.

The innovative watercraft was created by French yachtsman Alain Thébault, and Swedish pro windsurfer Anders Bringdal.

They believe they have found the solution to traffic congestion and urban air pollution. These solar-powered pods float two feet above the water and travel at 18 miles per hour (30 kilometers per hour).

Sharks: culling is not the answer | Photo: Shutterstock

Humans are global super predators. So, should we hunt and cull sharks just because they kill some of us?

What is shark culling? Shark culling is a governmental policy to capture and kill sharks in coastal areas with the goal of reducing the number of predators in public beaches, and the attacks on swimmers and surfers.

It's an intense and emotional debate with fierce representations and opinions on both sides of the table. But let's start with the basics. If we defend and protect thousands of animal species, why shouldn't we protect sharks?

What is the definition of swell? What are the parts of a wave? What the most important surf forecasting terms? How do you name the highest part of a wave?

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