articles

The global climate is a complex machine in which some pieces are separate yet others are connected. Scientists try to discover the connections to predict what will happen to our climate, especially in a future with more heat-trapping gases.

Retroviruses – the family of viruses that includes HIV – are almost half a billion years old, according to new research by scientists at Oxford University. That's several hundred million years older than previously thought and suggests retroviruses have ancient marine origins, having been with their animal hosts through the evolutionary transition from sea to land.

For centuries drought has come and gone across northern sub-Saharan Africa. In recent years, water shortages have been most severe in the Sahel—a band of semi-arid land situated just south of the Sahara Desert and stretching coast-to-coast across the continent, from Senegal and Mauritania in the west to Sudan and Eritrea in the east. Drought struck the Sahel most recently in 2012, triggering food shortages for millions of people due to crop failure and soaring food prices.

Louisiana—which faces faster levels of sea-level rise than any other land on Earth—could lose as many as 2,800 square miles of its coast over the next 40 years and about 27,000 buildings will need to be flood-proofed, elevated or bought out, the New Orleans Advocate reported.

• Even a mild rise in temperature damages insect’s ability to reproduce
• Insect populations in high latitude countries are worst affected
• Identifying genes linked to increased and decreased reproduction may help understand how insects cope with climate change and controlling insect pests

With 2016 reportedly the warmest year on record, scientists have discovered insects are already feeling the effects of climate change, as a rise in temperature is shown to damage their ability to reproduce.