Earthquakes

Magnitude 5+ Earthquakes – Global

5.5 Earthquake hits the Kermedec Islands.

5.5 Earthquake hits Kepulauan Kai, Indonesia.

5.4 Earthquake hits Colombia.

5.2 Earthquake hits the Solomon Islands.

5.1 Earthquake hits eastern New Guinea, Papua New Guinea.

5.1 Earthquake hits northern Xinjiang, China.

5.0 Earthquake hits Vanuatu.

5.0 Earthquake hits off the east coast of Honshu, Japan.

Advertisements

Environment

Growing Use of Chemical Harming Ozone Layer

Emissions of a neglected class of ozone-destroying chemicals not controlled by a U.N. treaty to protect the ozone layer are on the rise, according to new warnings from researchers.

While the “very short-lived substances” (VSLS) have only a brief influence on stratospheric ozone, their soaring emissions are causing concern.

In particular, emissions of dichloromethane, a manmade VSLS used in industry, can cause ozone depletion that is almost four times more efficient at influencing climate than longer-lived gases such as CFCs (chlorofluorocarbons).

Computer models suggest, compared with the better-known CFCs, dichloromethane emissions reduce the ozone layer by less than 1 percent.

But Leeds University researcher Ryan Hossaini says: “At some locations, its atmospheric concentration has doubled since the late 1990s.”