Space research has 
spend
 a lot of Change the verb form
spent
money
 Use synonyms
Linking Words
while
 Correct word choice
and
those 
Change the determiner
that money
money
 spent can actually be allocated to help condition Use synonyms
on 
the Change preposition
apply
earth
 in several Use synonyms
area
 and make the Change to a plural noun
areas
earth
 worth living Use synonyms
for
 the next Change preposition
on for
hundreds
 years. Some people worry too much about the future and neglect the current urgent situation which is global warming.
Those irresponsible who Add the preposition
hundreds of
cutting
 down the Wrong verb form
cut
forest
 for Fix the agreement mistake
forests
the 
mining and leave the Correct article usage
apply
field
 hanging without growing back Fix the agreement mistake
fields
the 
Correct article usage
apply
tree
 are making our beloved Fix the agreement mistake
trees
earth
 Use synonyms
lacking of
 Wrong verb form
lack
trees
 to absorb free radicals and carbon dioxide. Use synonyms
Moreover
, Linking Words
this
 results in bad Linking Words
effect
 of global warming. Fix the agreement mistake
effects
By
 Change preposition
With
this
 Linking Words
big
 amount of Correct word choice
large
money
, the international organization can bring back the Use synonyms
forest
 in every Fix the agreement mistake
forests
country
 and reduce the effect of global warming. Use synonyms
For instance
, the United Linking Words
Nation
 can allocate billions of dollars for planting big number of Fix the agreement mistake
Nations
trees
 in each Use synonyms
country
. Use synonyms
Therefore
, the Linking Words
trees
 will produce more oxygen, absorbing the carbon dioxide that the big plant industry Use synonyms
produced
. The planet will less warmer and the ice Wrong verb form
produces
on
 Change preposition
in
antartica
 will not start to melt down, reducing flood Correct your spelling
Antarctica
number
 Fix the agreement mistake
numbers
arise 
in every Verb problem
apply
country
.
People Use synonyms
also
 try to leave our planet and Linking Words
problem
 behind, Fix the agreement mistake
problems
while
 actually everything still can be fixed. Thousands of dollars can help every state to fix Linking Words
the 
sanitationCorrect article usage
apply
,
 because when Remove the comma
apply
rainy
 season comes, floods and catastrophes happen in every developing Add an article
the rainy
country
. Use synonyms
For example
, since Linking Words
the 
developing countries don't have adequate sewage disposal and sanitation, Correct article usage
apply
distribute
 those Wrong verb form
distributing
cashes
 will help Change the wording
cash
amounts of cash
flows of cash
fistfuls of cash
thousand
 Change the article
a thousand
lives
 from catastrophes and for them to improve their condition Change preposition
of lives
besides
 suffering from Linking Words
disater
.
Correct your spelling
disaster
To sum up
, the Linking Words
money
 can be used to grow back the forest as the Use synonyms
trees
 play Use synonyms
crucial
 role in saving the Add an article
a crucial
earth
 and Use synonyms
allocate
 to sewage disposal as it needed to be built Wrong verb form
allocated
for
 prevent floodChange preposition
to
 arises
.Verb problem
apply