Could Earth Turn Into The Next Venus?

From what Venus was like billions of years
ago, to how that could turn into a greenhouse planet, join us as we explore whether Earth
could turn into the next Venus. You all know the words “Global Warming”, and
over the last year or two especially there’s been a lot of pushing to either get active
to stop it, or to admonish it and say that it’s “not real”. Sadly, Global Warming is very real, and it’s
a very real threat to our planet, and if we don’t do things to try and save the planet,
it’s very possible that we might end up like a certain other planet in our solar system. Mainly…Venus. If you don’t know, Venus is a very hot planet,
in fact it’s 864 degrees Fahrenheit on average. Which if you didn’t know is enough to melt
lead and cause problems for other materials as well. At present, that we know of, there is no life
on Venus due to both its atmosphere (which is made up of mostly Carbon Dioxide) and its
temperatures. So you might be wondering, “How can we end
up like Venus when we clearly have a much different type of planet than it?” Well that’s the thing, scientists believe
that once upon a time, the planet Venus was a lot like the Earth…until something caused
it to change for the worse. How and why are they saying this? Well, Venus has been under study for quite
some time due to its extreme temperatures and atmosphere, not to mention it’s our “twin”
planet. So, scientists have been using simulation
technology to try and determine what Venus was like BEFORE it was the heat-blasting planet
it is now. And they state that between 2-3 billion years
ago…it may have been very much like Earth. With temperatures that weren’t the in the
hundreds of degrees, and maybe even having its own ocean. “Many of the same tools we use to model
climate change on Earth can be adapted to study climates on other planets, both past
and present,” said Michael Way, a researcher at GISS and the paper’s lead author. “These results show ancient Venus may have
been a very different place than it is today.” Now to be clear, the simulations don’t say
that Venus was an EXACT match to Earth, as Venus as a whole has many different things
than Earth. For example, its rotation, Earth rotates on
its axis every 24 hours. Venus does it in the course of 117 days. Also, the simulations state that “ancient
Venus” was more land-heavy than Earth, and that its oceans were relatively shallow. Not that this would’ve dissuaded potential
life on the planet, but rather it would’ve been slightly different conditions than Earth
in its early days. So, IF this is all true, and IF Venus was
very much like Earth in the early billions of its lifetime…what happened? Well, this is where conflicting theories come
to pass. Because for the longest time, it was believed
that because Venus was closer to the sun, and thus was more exposed to its sunlight,
that it was the cause of Venus turning into what we have now. But according to GISS, that’s not exactly
what happened: “In the GISS model’s simulation, Venus’
slow spin exposes its dayside to the sun for almost two months at a time,” co-author
and fellow GISS scientist Anthony Del Genio said. “This warms the surface and produces rain
that creates a thick layer of clouds, which acts like an umbrella to shield the surface
from much of the solar heating. The result is mean climate temperatures that
are actually a few degrees cooler than Earth’s today.” This meant that the sunlight likely WASN’T
the main reason that Venus is now a Greenhouse Effect planet. So what was it? What made Venus the burning hot planet that
it is right now? Well, according to many, including the Europlanet
Society, they think that a massive “global event” caused the planet to get much, much
hotter: “It is possible that the near-global resurfacing
event is responsible for its transformation from an Earth-like climate to the hellish
hot-house we see today.” But what was that event? What could’ve turned Venus from a habitable
planet in every sense of the word…to one that honestly just…wasn’t? Sadly, we don’t know the answer, and that
horrifies many people because that means we can’t exactly prepare for what may happen
if we don’t know what happened to our neighbor. However, we can generalize the action and/or
event itself. Because at some point in its lifetime, Venus
went from doing a balanced absorption and releasing of heat, not unlike what we have
here on Earth, to an imbalance. One where heat was absorbed to a great extent
than it was being released. “Basically, Venus was in a state of heat stroke
— the planet was in a warming state and it couldn’t cool down,” said Tyler Robinson,
an astrobiologist at the University of Washington. Again, how exactly this happened, we don’t
know, but it is easy to plot how that “heat stroke” affected the planet and turned it
into what we have now. First off, the increased heat would have slowly
but surely evaporated the oceans. And while it’s true that evaporation is part
of the water cycle, there is such a thing as evaporating it too much. Because if it’s hot enough, it won’t stay
in the atmosphere, it’ll leak out into space, and thus break the cycle. Which is what scientists suspect. Furthermore, the increased heat would have
allowed more Carbon Dioxide to fill up the atmosphere, and as we’re learning here on
Earth right now, the more Carbon Dioxide in the air, the hotter it gets on the planet. At present, Venus’ atmosphere is 90 times
thicker than Earth’s, and much of that thickness is due to the Carbon Dioxide, and that’s why
it’s 800+ degrees Fahrenheit on the surface. Oh, and the atmosphere also has clouds of
Sulfuric Acid which quite literally makes acid rain, so that’s not nice either. And if you’re think that this kind of “rapid
change” is very unlikely in a planet, you’re honestly wrong. Because this happened more than likely to
another planet next to Earth: Mars. Certain findings and simulations point to
Mars also having an ocean, or many oceans, once upon a time. As well as possibly having greenery on the
planet in some form. But unlike Venus, Mars got a thinner atmosphere,
one that has a literal hole that appears every two years and blasts whatever water is on
the planet into space. Add that to the bombardment of space radiation
and other factors (that an atmosphere usually protects planets from) and you get a cold
barren wasteland that you have now on Mars. So right there you have two planets that underwent
massive changes to their climate in likely not too long of a period of time in the cosmic
context. Which brings us to…can Earth be like Venus
if we’re not careful with Global Warming? Before we answer that, be sure to like the
video and subscribe to the channel! That way you don’t miss any of our weekly
videos! Now before we get into this, you might think,
“Why are we talking about Earth turning into Venus and not Mars?” Well that’s because Mars had a problem that
right now isn’t likely on Earth. Not to mention, if the atmosphere were to
suddenly get a hole in it, we’d all die more than likely depending on its size and how
long it remained. Right now, the more immediate issue is Global
Warming, which we should be very concerned about. In fact, many people are studying Venus because
they realize that where we are right now in terms of studying Global Warming isn’t enough
to predict what will happen to Earth in the grand scale:
“[Venus is] a laboratory for understanding climate physics and climate change on an Earth-like
planet,” one scientist said. “You can’t learn everything you need to know
about climate change on Earth by only studying Earth.” That’s not to say we can’t learn anything,
and in fact, what we have learned should be more than enough to prove how in danger we
are if we’re not careful. If you look at the Carbon Dioxide emissions
of our planet in the last several hundred years, you’ll notice that a major spike started
happening in the late 1800’s and early 1900’s. What happened around that time? The birth of the internal combustion engine,
and the beginning of the use of fossil fuels to power machines. These are the things that release Carbon Dioxide,
Carbon Monoxide, and more into the atmosphere. Now to be clear, there are natural things
in our world that put that into the atmosphere, including ourselves via our breathing. But those levels are very low and you could
even say that they’re part of the “natural balance” of the world, whereas the carbon
emissions of vehicles are now. Even not kept in check, they will heat up
the planet, and in fact, they already are. The natural temperature of the world has already
gone up many degrees over the last hundred years or so. But despite what you might think, it’s not
uniform. “What does that mean?” It means that certain areas are getting warmer
faster than others, and unfortunately for us, one of those regions is the Arctic, which
is why you’ve likely been hearing about how the polar ice caps have been melting, raising
the water levels of the planet. Even the late Stephen Hawking was worried
about what would happen if we don’t change our ways in regards to Global Warming:
“We are close to the tipping point, where global warming becomes irreversible. Trump’s action could push the Earth over the
brink, to become like Venus, with a temperature of 250 degrees [Celsius], and raining sulfuric
acid,” he said to BBC once in an interview. And if you recall, Hawking was one of the
most brilliant people on the planet, so if he said we’re in trouble? We need to take it seriously. But do we have a serious chance of becoming
like Venus? It’s honestly hard to say, and not for the
reasons you’re thinking. First and foremost, as we noted earlier, when
it was “habitable” the planet Venus didn’t have as deep of oceans as Earth did, and it
had much more land masses. So even IF the planet Earth did get hotter
by a much larger factor, it would take a VERY long time to get to where all the bodies of
water in the world evaporated. It’s not impossible, but it is unlikely at
the present time. Speaking of the oceans, because of Global
Warming, the oceans are rising, and if Global Warming continues to melt the ice caps, we’ll
have even less land to worry about… “Earth hasn’t experienced CO2 levels this
high in hundreds of millions of years, and the resulting sea-level change is likely hundreds
of feet, so, say ‘so long’ to all your favorite coastal cities,” notes one scientist on the
matter. So by that token, if the world was to be flooded,
we wouldn’t turn into Venus, we’d be Waterworld minus Kevin Costner, and thus, any fear of
becoming Venus would be literally drowned out in the worst way possible. The other problem here is the thickness of
our atmosphere. Venus’ is 90 times thicker than ours if you
recall, and it has a clear imbalance of Carbon Dioxide. Right now, the Earth’s atmosphere has about
.04% Carbon Dioxide within it, and thus would take hundreds of millions of years more than
likely to get to the levels like Venus. And a whole heap of other catastrophes could
happen before that point. So is that it? Should we stop worrying about Global Warming
and focus on other things? Not even close. Like we noted, just because Global Warming
isn’t turning us into Venus doesn’t mean that it’s not hurting our planet. The weather patterns of the world are being
thrown out of whack, the ice caps are melting and causing the oceans to rise and consume
the land, we are in danger. It’s just that we’re not in danger of being
like Venus at the present time. But then again, if you think about what we’ve
learned about Venus, the planet didn’t expect to be what it is right now. It was at one point in time very habitable,
and then SOMETHING caused it to burn hot, evaporate the water, and became an inferno
of a planet for lack of a better word. SOMETHING caused that, and that SOMETHING
could happen on Earth if we’re not careful, and for all we know, Global Warming could
intentionally or unintentionally lead to that event happening here. If we’re being honest, there is a lot of conflicting
information about Global Warming, and there are just as many people who rally against
it as there are people proclaiming it to be real. It can get really confusing, and it makes
it hard to decide where to fall on the issue. But here’s the truth, we ARE affecting the
planet, and not in the good way. Between tearing down trees (which hurts our
oxygen supply and ecosystem balance), pouring out more and more fossil fuels that fills
up our atmosphere with negative gas and more, we’re changing the world. Some of it is for ourselves, and we need certain
things to live, but we also need to be respectful to the planet that we live on right now. It’s impossible to know where humanity and
the Earth will be in about 100 years, but if we’re not careful, we may not be Venus,
but the Earth will be a place we may not recognize, and that’s more than enough reason to fight
to save the planet, even if it’s in your own little way. Thanks for watching everyone! What did you think of this look at Global
Warming and whether we’ll turn into Venus if we don’t try and stop it? Do you think that Venus was like Earth once
upon a time? Do you think that people are overreacting
about the Global Warming issue? Let me know in the comments below, be sure
to subscribe, and I’ll see you next time on the channel!


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