Picture of the week: Bigeyes

Bigeyes (Priacanthus hamrur)  from the Red Sea. Taken with Olympus PEN, 8mm Panasonic, two strobes. 

Highlighted: the great whites of Robberg, South Africa

Local photographer Daron Chatz captured some amazing footage recently of great white sharks hunting seals near the cliffs of off Robberg  peninsula, Plettenberg Bay Africa. An unique spot for observing natural predation of the great white sharks, from the lofty heights above. Some great filming with a drone of great whites chasing the seals in the crystal clear water at Robberg had also revealed how the GW prepares for their breaches when a seal is in the vicinity.

News: Recent warming of earth is global and evironment related

Coloured lines; various computation methods. Black lines; modern measures.

Has the current warming of the earth a natural cause?  It now appears that the average world temperature has risen faster in the last 150 years than ever (see also my earlier blog). Even if we look back to the days of the Roman Empire, we do not find an event that is somewhat comparable to the warming of the past decades This is an important indication that current warming has no natural cause. These are the conclusions from three studies on historical climate changes published this week in Nature and Nature Geoscience by international research groups led by researchers from the University of Bern. 

The graphic representation that wraps up the major results is a kind of hockey stick, with a sharp bend up at the end: the moment, halfway through the last century, when the man-fired greenhouse gasses began to affect the atmosphere, and resonate in the climate. Surprisingly and disturbingly, the warming of the last 150 years is happening all over the earth's surface: for the first time, it is getting warmer everywhere. The argument often used by climate skeptics that climate "just always changes" loses meaning concludes the group 

100.000 visits

100.000 visits must mean something, I guess. At least that the site that I started three years ago did attract attention from the greater public. As some of you may have noticed,  I gradually widened the focus a bit from the UW world and photography to include more general issues of our natural environment. Both worlds, of course, are connected with another:  the conditions of the oceans depend on those of the land and those of the land on those of the oceans.   The old Greek believed that the oceans were the offspring of mother earth and the air: the Sea God  Okeanos was the oldest son of Gaia (Earth) and Ouranos (Sky).  Modern scientists think that all life on earth once started at the bottom of the Oceans as microorganisms, perhaps in deep hydrothermal vents that were rich with bacteria. Thanking you for your interest in my site, I wish you all happy years to spend in what still remains of this wonderful world, either under or above the surface of the sea.

Highlighted: The Jonah experience

Picture: Chase Dekker PhotographySource:Supplied

The Jonah experience, here photographed by Chase Dekker in Monterrey Bay California, is the unintended swallowing of a  human or a sea mammal by a big plankton-eating whale. Some time ago it was a human snorkeler gulped in and subsequently spit out, now a seal.