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actually, they are Currently, nearly 50% of the global oceans meet the criteria for a marine heat wave, periods of anomalously warm ocean temperatures that are

actually, they are Currently, nearly 50% of the global oceans meet the criteria for a marine heat wave, periods of anomalously warm ocean temperatures that are higher than 90% of the previous observations for a particular date they are now more frequent because of climate change, but they were common in the past too. common as in "not in any way special, strange, or unusual" "Present for several months" is common too for marine heat waves, they cover very large surfaces so they can persist for weeks to months or even years, and occur at subsurface levels

reactordev 3y ago
Ugh, the fact that there IS a heat wave in the ocean currently is catastrophic. Not that they are common, not that they have occurred in the past (they haven’t, since 2010 it was unheard of). This is warming. You say it’s not in any way special yet you are quoting from a source that says the opposite. They are anomalous ergo they are special, strange, and unusual. This isn’t normal. There isn’t a “history of warming” because marine heat waves bleach reefs, kill marine life, cause toxic algae blooms, and many more ills. If it were “normal”, our seas would be empty. I like our seas having life.
- peoplefromibiza 3y ago
  > they haven’t, since 2010 it was unheard of the rate of ocean warming has doubled, and marine heatwave events have doubled in frequency since 1982 it seems to me that marine heatwaves were heard of before 2010... the current marine heat wave in the Gulf of Mexico is mostly caused by El Niño, which is not a human made phenomenon. > They are anomalous ergo they are special No they aren't, just like hurricanes, they are anomalies compared to good everyday weather for humans but they aren't special, they are common phenomena. Common on a planetary scale can mean that two events are separated by thousands or millions of years. For example: ice ages or mass extinction events are common on planet Earth. Given enough time, they will happen. > There isn’t a “history of warming” there actually is. We simply weren't there and can only somewhat infer what happened. Ocean temperatures today are about the same as they were more than 100,000 years ago I'm not saying global warming is not happening and that it's not human made, I'm simply saying that there have been periods during the 4.543 billion years of existence of this Planet where oceans have been as warm or warmer than now. They were full of life as well, a life different from the one we know now, but life nonetheless. 4.543 billion years means that there have been 44,533 100,000 years ago how many 10 years ago is that?

reactordev 3y ago

Ugh, the fact that there IS a heat wave in the ocean currently is catastrophic. Not that they are common, not that they have occurred in the past (they haven’t, since 2010 it was unheard of). This is warming. You say it’s not in any way special yet you are quoting from a source that says the opposite. They are anomalous ergo they are special, strange, and unusual. This isn’t normal. There isn’t a “history of warming” because marine heat waves bleach reefs, kill marine life, cause toxic algae blooms, and many more ills. If it were “normal”, our seas would be empty. I like our seas having life.

peoplefromibiza 3y ago
> they haven’t, since 2010 it was unheard of the rate of ocean warming has doubled, and marine heatwave events have doubled in frequency since 1982 it seems to me that marine heatwaves were heard of before 2010... the current marine heat wave in the Gulf of Mexico is mostly caused by El Niño, which is not a human made phenomenon. > They are anomalous ergo they are special No they aren't, just like hurricanes, they are anomalies compared to good everyday weather for humans but they aren't special, they are common phenomena. Common on a planetary scale can mean that two events are separated by thousands or millions of years. For example: ice ages or mass extinction events are common on planet Earth. Given enough time, they will happen. > There isn’t a “history of warming” there actually is. We simply weren't there and can only somewhat infer what happened. Ocean temperatures today are about the same as they were more than 100,000 years ago I'm not saying global warming is not happening and that it's not human made, I'm simply saying that there have been periods during the 4.543 billion years of existence of this Planet where oceans have been as warm or warmer than now. They were full of life as well, a life different from the one we know now, but life nonetheless. 4.543 billion years means that there have been 44,533 100,000 years ago how many 10 years ago is that?