20 Years Ago: 4-24-93 — EPA makes air conditioning repair more costly: Refrigerants can’t be vented during repair | JunkScience.com

Did it make a difference in the “ozone hole”? See for yourself.

Study of climate change amended, moves ahead - Omaha.com

McCoy also was able to pass an amendment to insert the term “cyclical” in front of “climate change” in the bill. He argued that made it clear the bill was not presupposing that climate change is caused by human use of fossil fuels.

Others, however, challenged the idea of scientific consensus on global warming.

“When they talk about melting at the North Pole, what's happening at the South Pole?” asked Sen. Mark Christensen of Imperial. “Have any of you gone and looked? It's freezing.”

Why Russian soldiers are finally replacing foot wraps with socks | World news | The Guardian

Analysts suggest the move is not just about ridding a 21st-century army of footwear more suited to a medieval peasant, but that portyanki have come to symbolise other more significant, but equally outdated, practices favoured by the Russian army that the minister is determined to abolish.

Shale gas could be lower carbon than imported fuel, say climate advisers | Environment | guardian.co.uk

Shale gas extracted in the UK would be lower carbon than imported gas from countries such as Qatar, and help to reduce greenhouse gas emissions if well regulated, the government's chief climate change advisers have said.

Greenpeace activists board Australian coal export vessel | RTCC - Climate change news

Campaigners from Greenpeace have boarded a coal ship off the coast of Australia, highlighting the country’s vast exports of a fuel which is a major contributor to global carbon emissions.