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Congrats :)

Thanks for the report!

Salp, yes. Can easily be this size.

It is actually not useful to think about the anthropogenic CO2 contribution as something small in absolute numbers. The ecosphere is a very delicate equilibrium. What we add brings the system out of balance, because it is adding up over long times. Think about a bathtub where 1 liter of water...

Against a white hazy sky I can see black having an advantage. From above, against the water, I think the classical signal colours will win...

Welcome ;)

Excellent videos! Must have been fun!

I like the variety! I can have fun diving deep, and the same fun seeing a try scuba diver on her first ever dive and making this experience possible!

"Balloon gas" (it is really sold under that name in some places) as far as I know sometimes has quite a lot of air (or nitrogen) in it. Normally about 5% non-helium content, but varies here. Thus it is cheaper than industrial helium, but not really an alternative for diving obviously.

Again, I do not know the situation, but I really doubt that the insurance regulation thing is related to some diving permit issue...

I know nothing about the situation in Quebec, but often times finding out what the exact regulatory problem is can help in approaching your local lawmakers about remedies for such probably unintentional consequences. Sometimes with success!

Welcome! :)

I have experience with a 18L steel on a Mares F-Light travel jacket. It is very well doable.

The Chairman, to this I agree of course! Every ton of CO2 is a problem, and every millimeter of sea level is a problem. In turn, this means that (unlike as with many other problems on Earth), we all can do something to reduce the catastrophe. Actually, the thing about ice bergs and ice...

The Chairman, frankly, I would strongly ask to not make unfounded assumptions about myself denying climate change. I have stated in one of my first postings in this thread that a) Whatever the details, the entire effect is clearly due to anthropogenic greenhouse gas emissions. The melting of...

As just one reference, take a look at this plot: https://sealevel.jpl.nasa.gov/files/ostm/cazenave.jpg Leading contribution is from inland ice. Mountain glaciers being the prime contributor. Neither greenland nor antarctica are actually close to being. And that is including the inland ice there.

Sorry to come across as being smart, but as said before, ice breaking free from an ice shelf does not change the sea level in a relevant fashion. Neither does melting of a shelf or of ice bergs. The ice is already floating when it is part of the shelf! The sea level rise has very little to do...

A shelf is ice that is also floating, but still connected to the land. Also a melting shelf does not rise the sea level. Most water influx is actually from far inland, e.g. glaciers, which would never produce ice bergs or shelves. If it was said they way it is reported here, it was a simple...

Melting icebergs (i.e. freshwater ice floating in the oceans) are not a relevant cause of sea level changes. If someone said so, it was in all probability a simple mistake. That happens to every one of use, even in topics we are well versed. For the observed sea level rise, added water (mostly...

I am actually thinking diving as a whole already is in quite a good situation. A large portfolio of agencies and clubs and training routes to choose from.