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4 Points
The Contender
Con (against)
0 Points

Earth will not remain Habitable for ever.

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Voting Style: Open Point System: 7 Point
Started: 6/29/2015 Category: Science
Updated: 3 years ago Status: Post Voting Period
Viewed: 791 times Debate No: 77103
Debate Rounds (3)
Comments (4)
Votes (1)




Good day ladies and gentle men, I am debating on the topic "Earth will not remain Habitable forever"
and anyone that accept this challenge should prove to me How and why Earth will forever be Habitable. However, before going further I would like to define major subject in my debate topic.

"The Earth is the third planet from
the Sun and it is the only planet
known to have life on it. The Earth
formed around 4.5 billion years
ago. It is one of four rocky
planets on the inside of the Solar
System . The other three are
Mercury, Venus , and Mars ."

" remain
continue to exist, especially
after other similar people or
things have ceased to do so."

suitable or good enough to live

Let's face it: The planet is
heating up , Earth's population is
expanding at an exponential
rate, and the the natural
resources vital to our survival
are running out faster than we
can replace them with
sustainable alternatives. Even if
the human race manages not to
push itself to the brink of
nuclear extinction , it is still a
foregone conclusion that our
aging sun will expand and
swallow the Earth in roughly 7.6
billion years.
So, according to famed
theoretical physicist Stephen
Hawking, it's time to free
ourselves from Mother Earth. "I
believe that the long-term future
of the human race must be in
space," Hawking tells Big Think.
"It will be difficult enough to
avoid disaster on planet Earth in
the next hundred years, let
alone the next thousand, or
million. The human race
shouldn't have all its eggs in one
basket, or on one planet. Let's
hope we can avoid dropping the
basket until we have spread the
Hawking says he is an optimist,
but his outlook for the future of
man's existence is fairly bleak.
In the recent past, humankind's
survival has been nothing short
of "a question of touch and go"
he says, citing the Cuban Missile
Crisis in 1963 as just one
example of how man has
narrowly escaped extinction.
According to the Federation of
American Scientists there are
still about 22,600 stockpiled
nuclear weapons scattered
around the planet, 7,770 of
which are still operational . In
light of the inability of nuclear
states to commit to a global
nuclear non-proliferation treaty,
the threat of a nuclear holocaust
has not subsided.
In fact, "the frequency of such
occasions is likely to increase in
the future," says Hawking, "We
shall need great care and
judgment to negotiate them all
According to some new astrobiological research, our home
planet will not be habitable for much
longer. As our Sun gets older, it will
get larger and warmer, eventually
leading to the Earth becoming
uninhabitable " first to humans and
other complex life in fairly short
order, and then, in around 1.75 to
3.25 billion years, to all cellular life
as we know it. Due to anthropogenic
climate change, and other variable
factors, we don"t know exactly when
human life will become untenable on
Earth, but the conclusion of the
study is pretty clear: Our time here
on Earth is finite, and we better find
our way off it sooner rather than
The research was carried out by
Andrew Rushby and fellow
researchers from England"s
University of East Anglia. There are
many factors that dictate a planet"s
habitability, but in this case the
astrobiologists focused on how long
Earth-like planets remain in the
habitable zone (HZ) of main
sequence stars. Basically, most stars
adhere to the main sequence " an
order of events that begins with a
star becoming dense enough to fuse
hydrogen into helium. Over time,
these stars get hotter and hotter, until
they start to run out out of hydrogen.
As the star gets hotter, nearby
planets also get hotter, until
eventually they become uninhabitable
" usually due to a lack of surface
water. (The photo above is of the
remnants of a supernova,
incidentally; our Sun probably won"t
go supernova.)
In the case of the Earth, the Sun"s
increasing warmth will push our
planet out of the HZ in around 1.75
billion years, with an upper bound of
around 3.25 billion years, depending
on the model used by the
researchers. Here they are talking
about habitability in absolute terms;
for humans, Earth will become very
unpleasant much sooner. "Of course
conditions for humans and other
complex life will become impossible
much sooner " and this is being
accelerated by anthropogenic climate
change," says Rushby. "Humans
would be in trouble with even a small
increase in temperature, and near the
end only microbes in niche
environments would be able to
endure the heat."
As part of the same study, the
astrobiologists also investigated the
length of the habitable phase for
other exoplanets, such as Kepler 22b
and Gliese 581d, which are both
theorized to be within their parent
star"s habitable zone. While 22b"s
habitable phase is around the same
length as Earth"s (4.3 to 6.1 billion
years), Gliese 581d, due to the
nature of its orbit around its small
home star, is expected to be
habitable for around 55 billion years.
How long planets remain in the
habitable zone, versus host star size.
(Smaller stars" habitable zones last
Given the almost impossible-to-
fathom scale of the universe, and
early analysis of data from the
Kepler space telescope, there could
be up to 50 sextillion Earth-like
planets out there in the cosmos . This
is a mind-bogglingly large figure (5
followed by 22 zeroes), but in short,
combined with this new data from
UEA, it"s very, very likely that there
are other planets in the universe that
have managed to cultivate lifeforms
during their multi-billion-year tenure
in the habitable zone.
It"s also good news for humans:
Assuming we can find a way off this
planet in the not-too-distant future,
we should have no problem finding a
planet that can host us for a few
billion years (assuming we don"t ruin
it, like we did Earth, of course).






I read to much, I am up to date with the idea Earth is on a time limit.
But what is to say Holly wood has not already shown the way. Colonizing other worlds is going to happen and what is so impossible to think this is the real first earth?
And what if the human race is already done it. Moved from planet to the next.

I am not going to add God in the debate, he has his own time line.
Debate Round No. 1


Mother Earth is like a giant living
organism made of many closely
interrelated components. These
components are constantly
interacting to provide and maintain
the circumstances necessary for
survival. The microcosm and
macrocosm have to work in unison
to support life. From the tiny
bacteria to forests and ecosystems
which act as carbon sinks in
maintaining the complex
interaction of gases in the
atmosphere, every component
plays a crucial role.
If you were a doctor looking at
Earth as a living organism, you
would see that her survival is
threatened. Human activity is
breaking the balance of life. Unless
we mend our actions, the system"s
ability to support life is being lost.
Here are 5 major factors that
currently pose a threat to the
Earth"s ability to sustain life.
Loss of Biodiversity
Ecosystems with higher levels of
biodiversity are more stable and
resilient. Each species is an
important part of the ecosystem,
specializing in their own functions
and contributing to the whole. But
planet Earth is currently going
through a drastic change! It is
estimated by experts that the
current species extinction rate is
between 1000 and 10,000 times
higher than the natural extinction
rate. (1)
Unsustainable Agriculture
Most of our agriculture is out of
balance, putting a lot of stress on
Earth"s life support systems.
Modern-day agriculture usually
consists of a monoculture, which
leads to unstable ecosystems. If a
farmer grows only corn, there will
be no habitat for predators which
consume pests, leading to a need
for synthetic pesticides. In a
monoculture, there are no species
with large root systems to hold the
soil together, causing soil erosion.
Also, there are no species to cycle
nutrients and fix soil nitrogen,
leading to usage of chemical
fertilizers. All over the world, farm
land is turning to dust leaving a
large and unpleasant question as to
how our future generations will
provide for themselves. (2)
Population Growth
Over the last 100 years, the
population has gone from less than
2 billion to over 7 billion. (3)
Alongside the population rise, the
industrial revolution has made us
more capable at consuming the
Earth"s resources. As population
size in developing countries
continues to grow by the millions,
there is a rise in the already high
demand on resources. This growth
is damaging Mother Earth"s organs.
Her liver is now unable to filter out
all our toxic waste which is
polluting the water we drink; and
her lungs can no longer handle all
the toxic smog coming from our
cities, changing the balance of
gases in the atmosphere. It is our
responsibility to make sure she
doesn"t collapse.
During the last century, most the
world"s forest cover has been lost.
(4) Trees have been providing
oxygen, filtering and cleaning the
water, purifying the air, preventing
soil erosion in farm lands and also
providing us with food. All this, for
FREE! Deforestation is seriously
diminishing Earth"s capacity to
provide for us today and for the
generations to come.
Overuse of Non-renewable
Since the beginning of the
industrial revolution, consumption
of fossil fuels has been rising
drastically. Sadly, it does not look
like this will reduce in the near
future. Economic growth has lead
to an increase in the demand for
fossil fuel based energy. (5) So
what"s wrong with all this? Not
only does the burning of fossil fuel
pollute the air, it also releases
carbon dioxide which is a
greenhouse gas and has the effect
of trapping energy from the sun in
the Earth"s atmosphere. This affects
global weather patterns causing
drastic changes and endangering
ours and our planet"s survival.


Ontime forfeited this round.
Debate Round No. 2


Where can we go next??
don't know just kidding


Ontime forfeited this round.
Debate Round No. 3
4 comments have been posted on this debate. Showing 1 through 4 records.
Posted by mfigurski80 3 years ago
BIG dissappointment from both sides.
Posted by n7 3 years ago
How is this topic even debatable without semantics?
Posted by 64bithuman 3 years ago
Also naming a debate in the negative tense is confusing.
Posted by PowerPikachu21 3 years ago
you made your argument way too tall!
1 votes has been placed for this debate.
Vote Placed by salam.morcos 3 years ago
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Total points awarded:40 
Reasons for voting decision: ff