Even more than the rest of impoverished Georgia, sub-tropical Ajaria ought to be prosperous.
It is the largest continuous area of primary broad leaf forest ecosystem in the whole sub-tropical zone.
New Zealand -- where it's summer in December -- serves up nighttime fishing, sub-tropical beaches, and award-winning wines.
The Tarawera Trail, which begins at the Buried Village, winds its way through scrub before a green canopy of sub-tropical ferns thickens overhead.
Dengue fever, a viral infection endemic to tropical and sub-tropical climates, is characterized by high fever, body aches and intense headache.
Plastic floating in the five sub-tropical gyres of the world, and the Gulf of Mexico oil spill, are two petroleum disasters.
He noticed that after his move from sub-tropical Johannesburg to seasonal New York he was less energetic and productive in the winter months.
The Garajonay National Park is an extremely rare example of the humid sub-tropical forest that covered most of Europe before the arrival of man.
The National Weather Service had earlier said the combination of two weather systems from the polar and sub-tropical jet streams would produce a "potentially historic" storm.
In fact, the sporadic transmission of malaria in the sub-tropical regions of the rich countries was vastly easier to control than is its chronic transmission in the heart of the tropics.
Dengue fever is common in tropical and sub-tropical countries.
According to the World Health Organisation, dengue is now endemic in more than 100 tropical and sub-tropical countries around the world, affecting some 50m people a year, mostly in urban or semi-urban areas.
"We've lost 17 percent of all plant life in the Atlantic, 26 percent in the North Pacific and in the sub-tropical oceans 50 percent or more of plant life has disappeared, " he said.
The humidity and sub-tropical rain in South Africa's port city of Durban is doing little to dampen the enthusiasm for the fifth Brics summit, the first time the leaders of Brazil, Russia, India, China and South Africa have met in Africa.
The disease is so heavily concentrated in the poorest tropical countries, and overwhelmingly in sub-Saharan Africa, that nobody even bothers to keep an accurate count of clinical cases or deaths.
应用推荐