Floods are caused by more than rainfall totals.
More likely there are exacerbating factors like these:
"Antiquated drainage system"
"Uncontrolled, unplanned development"
"Destruction of vegetation ecosystems
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Re: 2005 Mumbai flood:
The Mithi River - Mumbai's Open Drain
The Mithi River runs through densely populated and industrial areas of Mumbai and carries the overflow discharges of Powai and Vihar lakes to the Arabian Sea at Mahim Creek. It's about 18 km long and has a catchment area of 7,295 hectares. The river is supposed to serve as a natural drainage channel that carries excess water during monsoons.
The poor state of the Mithi river (also known as Mahim River) in 2005 was blamed by many for excerbating the flood disaster. The river had long been heavily polluted, at times looking more like an open drain than a river. It was then, and still is today, used as a dumping ground for sewage, industrial waste and all types of garbage from those living along its banks.
Mangrove Flood Defences
The river's capacity for dealing with larger amounts of water caused by the monsoon rain had also been dealt a blow by the destruction of many of the mangrove ecosystems alongside the river. Mangroves normally served as a buffer between land and water. Without them, the river's banks were unable to withstand pressure from increased water flow. It is estimated that Mumbai lost about 40% of its mangroves between 1995 and 2005. Some have been destroyed by the dumping of sewage and garbage, but many of them were claimed for building land, such as the Bandra Kurla Complex."
Yes, the godless and evil left has an agenda to brainwash and control all people on the earth according to their will and their manipulations,. Global warming is one of them but so is extreme self indulgence and tyrannical laws (i.e.,their alliance with the terrorists )where only godless and evil people will be in the ruling class. However, the Word of God gives us the signs of the end of this age culminating in the return of Christ Jesus as Lord and King of all the nations of earth, His throne in the land of Israel. The 7 year period preceding His return is called the tribulation and will be marked by 21 devastating judgments against the peoples of the nations of the earth who have scorned God and His Christ and will be marked by momentous and never before cataclysms of the earth (including floods and earthquakes and others) to fulfill the prophecies of turning the earth upside down and shaking the evil out of it, beginning with the principals of Scripture that all men but Jesus Christ are evil and wicked in their minds and works. The heart of mankind is evil from their youth up and desperately wicked. We all sin against God and Christ Jesus every day, even the best of so called good men, of which only Jesus Christ qualified as a good man.
Matthew 24: 1 And Jesus went out, and departed from the temple: and his disciples came to him for to shew him the buildings of the temple.
2 And Jesus said unto them, See ye not all these things? verily I say unto you, There shall not be left here one stone upon another, that shall not be thrown down.
3 And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?
4 And Jesus answered and said unto them, Take heed that no man deceive you.
5 For many shall come in my name, saying, I am Christ; and shall deceive many.
6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet.
7 For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.
8 All these are the beginning of sorrows.
9 Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.
10 And then shall many be offended, and shall betray one another, and shall hate one another.
11 And many false prophets shall rise, and shall deceive many.
12 And because iniquity shall abound, the love of many shall wax cold.
13 But he that shall endure unto the end, the same shall be saved.
14 And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
16 Then let them which be in Judaea flee into the mountains:
17 Let him which is on the housetop not come down to take any thing out of his house:
18 Neither let him which is in the field return back to take his clothes.
19 And woe unto them that are with child, and to them that give suck in those days!
20 But pray ye that your flight be not in the winter, neither on the sabbath day:
21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
22 And except those days should be shortened, there should no flesh be saved: but for the elect’s sake those days shall be shortened.
23 Then if any man shall say unto you, Lo, here is Christ, or there; believe it not.
24 For there shall arise false Christs, and false prophets, and shall shew great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect.
25 Behold, I have told you before.
26 Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.
27 For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be.
28 For wheresoever the carcase is, there will the eagles be gathered together.
29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
31 And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.
32 Now learn a parable of the fig tree; When his branch is yet tender, and putteth forth leaves, ye know that summer is nigh:
33 So likewise ye, when ye shall see all these things, know that it is near, even at the doors.
34 Verily I say unto you, This generation shall not pass, till all these things be fulfilled.
35 Heaven and earth shall pass away, but my words shall not pass away.
36 But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
37 But as the days of Noe were, so shall also the coming of the Son of man be.
38 For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark,
39 And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.