29 June 2015

Underwater Noise Destructive to Environment

What does 280dB mean?

That is 120 dB x 10^16; or in other terms: 10,000,000,000,000,000 times louder than a starting jet air plane!
This incomprehensible amount of noise is produced under water where oil and gas companies explore new resource fields.
While ships' sonar devices have been linked to whales beaching themselves, this situation is untenable. Hope to illustrate it with a graph:
Destructive decibels harm underwater fauna
Can't stand that noise!
For the tech heads, some detailed info on decibels can be found on MISCELLANY and the UNSW website.

G7 Leaders Agree On Action To Limit Global Warming To 2 Degrees

G7 Leaders Agree On Action To Limit Global Warming To 2 Degrees

Group of Seven (G7) leaders agreed to limit global warming to 2°C at a meeting in Germany on Monday 8th June 2015, a feat they hope to accomplish by reducing their carbon emissions, mobilizing $100 billion a year for climate change mitigation, and facilitating more investment in developing nations.
The G7 declaration did call for “binding rules” that would “enhance transparency and accountability” as nations work toward achieving their carbon-reduction targets. But, experts say, violating those mechanisms – if ultimately included in any agreement in December – would not result in any sort of “enforcement sanctions,” explains Jennifer Morgan, global director of the climate program at the World Resources Institute.
The final agreement offered “support” for 40 to 70 percent reductions by 2050, compared to 2010 levels.
Read the full story on Climate Progress and on U.S.News.