Monthly Archives: March 2019

Climate change 🌁: Are we all doomed? – UpFront – David Wallace-Wells


Al Jazeera English
Published on Nov 11, 2017

This month, the United States released an exhaustive scientific report on climate change, citing humans as the dominant cause of global warming.

Space: the next frontier for war? | The Economist

The Economist

Published on Feb 20, 2019

President Trump has just announced plans to create a new military Space Force, increasing the prospect of a new theatre of war. How might war in space be fought?

The 1,300 active satellites above the earth provide a wide array of services – some of which are vital for emergency response and for the military. An attack on a countries satellites could be catastrophic and many worried that space may become a new theater of war. Large powers have developed various capabilities for destroying satellites

Now companies are building advanced service spacecraft that could become weapons. The purpose of these service craft is to repair and move existing satellites but all it takes is a change of intent for these spacecraft to become warcraft. A Chinese space weapon test which destroyed one of its own defunct satellites in 2007 created a great deal of debris that put other satellites in danger.

If debris from one act of destruction goes on to destroy further satellites, a chain reaction could then ensue, rendering some orbits unusable. This is known as the Kessler syndrome.

Because America’s armed forces gain more capability from satellites than any other country, America has the most to lose from war in space. It is planning to increase its capabilities in the area. President Trump wants a new space force. The world will hope for peace in the cosmos but history suggests that such ideals are not easily maintained.

The new scramble for Africa | The Economist

The Economist

Published on Mar 8, 2019

The past decade has seen a big surge of foreign interest in Africa—involving China, India and Russia. If the continent handles this new “scramble” wisely, the main winners will be Africans themselves.

How do you feed a world dealing with climate change? | The Question

CBC News: The National
Published on Dec 12, 2018

As the planet keeps on warming, new technology aims to mitigate climate change to some extent. However, some warming has already happened. With more to come, people will need to adapt. Consider the stakes in Africa: Countries there already import billions worth of food. If the deserts keep encroaching, if the droughts get worse, feeding people will get harder and more expensive. So The National asks: How do you feed a world in climate change?

See related:

Food-matters,

The regional impact of climate change around the globe

DW News

Published on Dec 8, 2018

The United Nations IPCC’s latest report on climate change and global warming highlighted how risks associated with extreme weather events are expected to keep increasing as the average global temperature rises. The IPCC report shows, for example, that in many places around the world, the likelihood of droughts and heavy rain is higher under global warming of 2 degrees Celsius. In addition to extreme weather events, the report also highlights “slow-onset events,” such as sea-level rise or salinization of soils, which can have devastating impacts.

How climate change is ‘loading the dice’ for more perilous hurricanes

PBS NewsHour

Published on Sep 14, 2018

As Hurricane Florence was closing in on the Carolina coast this week, the role of climate change in intensifying weather was back in the national conversation. Amna Nawaz talks with Radley Horton of Columbia University about the link between climate change and sea level rise and rising temperatures.

Lights off across the world to mark Earth Hour

CGTN
Published on Mar 30, 2019

The lights of the world’s most famous monuments were turned off for an hour on Saturday to mark Earth Hour. The global initiative was launched by the World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide. #EarthHour