What do religious texts such as the bible or Koran say about the end of the world?

The world that Satan has been in from Eden will end. Satan is put in the pit at the second coming of Jesus, Eph.3:21; The world of Jesus never ends, he beings eternity. He makes all perfect as it was before it was lost. This takes time from Eden, do not worry about time before that.

Adam--------- 000 + 000 = 930 + 3136 BCE + 2006 CE = 6,072

Seth----------103 + 912 = 1042

Enos----------235 + 905 = 1140

Cainan--------325 + 910 = 1235

Mahalaleel--- 395 + 895 = 1290

Jared---------460 + 962 = 1422

Enoch---------622 + 365 = 0987

Methuselah--- 687 + 969 = 1656

Lamech--------874 + 777 = 1651

Noah---------1056 + 950 = 2006 + 2060 BCE + 2006 CE = 6,072

Shem---------1558 + 600 = 2158

Arphaxad-----1658 + 483 = 2141

Salah--------1693 + 433 = 2126

Eber-------- 1723 + 464 = 2187

Peleg--------1757 + 239 = 1996

Rue----------1787 + 239 = 2026

Serug--------1819 + 230 = 2049

Nahor--------1849 + 148 = 1997

Terah--------1878 + 205 = 2083

Abraham------2008 + 75 = 2083

Abraham------2083 + 100 = 2183 + 1883 BCE + 2006 CE = 6,072

Isaac--------2108 + 188 = 2288 + 1778 BCE + 2006 CE = 6,072

Jacob--------2168 + 147 = 2315 + 1751 BCE + 2006 CE = 6,072

Joseph------ 2258 + 110 = 2368 + 1698 BCE + 2006 CE = 6,072

Levi---------2249 + 137 = 2386

Kohath-------2309 + 133 = 2442

Issachar-----2255 + 38 = 2293

Job----------2293 + 140 = 2433 + 1633 BCE + 2006 CE = 6,072

Amram--------2369 + 61 = 2430

Amram--------2369 + 64 = 2433

Aaron--------2430 + 123 = 2553

Num.33:38,39;

Moses--------2433 + 450 = 2883

Samuel Acts 13:20;

Moses--------2473 + 40 = 2473

Moses--------2473 + 450 = 2923

Eli 1Sam.4:15,18;

Moses--------2473 + 40 = 2513

Abraham----- 2083 + 430 = 2513

Exo.7:7; 12:41[At 430];

Moses--------2433 + 120 = 2553 + 1513 BCE + 2006 CE = 6,072

Deut.1:3; 34:7;

Caleb--------2475 + 85 = 2560

Josh.14:7,10;

Judge Jair---2553 + 301 = 2854 + 1212 BCE + 2006 CE = 6,072

Jdgs.11:26;--2854 + 29 = 2883

1Sam.7:2,13,15;

Samuel-------2883 + 76 = 2959 + 24 2983 + 1083 BCE + 2006 CE = 6,072

David--------2959 + 70 = 3029 + 1037 BCE + 2006 CE = 6,072

2Sam.5:4,5;

Moses--------2553 + 480 = 3033

1Ki.6:1[480 years];

Solomon------3033 + 36 = 3069 + 997 BCE + 2006 CE = 6,072

1Ki.11:42;

Judah kings--3069 + 391 = 3460 = 606 BCE.

Zedekiah-----3460 + 606 BCE + 2006 CE = 6,072

Prophecy

3460+ 2520 = 5988, Now today: 6072, 2612 and 2006 CE.

Dan,4:16,23,25,32[7 x 360 = 2520];

3623 + 443 BCE + 2006 CE = 6,072

7:25[2500 Michael];

8:12-14[2300 bible];

12:1-7[2500 Michael Rev.12:7-12= 2520];

12:8-10[2520 = 1914 CE and WW1. Rev.11:1-3[2x 1260 = 12:7-12];

12:11[2x 1290 = 2580 - 2520 = 60];

12:12[2x 1335 = 2670 now year 92 = 2612];

Rev.9:1-5[5 x 30 = 150 pit open for Satan];

Rev.20:1-6; the 1000 year reign of Christ to make all new.

There is a lot of material in the Bible about the end of the world. A key aspect is that people will be held accountable for the things they have done. The Bible predicts a time of testing at the end where there will be much evil and many deceivers. Those who have accepted God's way will find eternal fellowship with Him and those who reject God will be rejected by Him.

they say that it will end in a huge war. put it into context, either a nuclear war, or a meteor striking, and humans fighting over the rapidly dwindling resources (food, water, oil, comic books...)