Climate change 
In the past century, 97 percent of the world’s tiger population has vanished and this is due to Poaching, deforestation and development have driven this sharp decline. Now, from the pine forests of Russia to the rainforests of Indonesia, a new threat looms for these remaining tigers: climate change.
1. Rising sea levels
In India and neighboring Bangladesh, rising sea levels are shrinking coastal habitat for hundreds of endangered Bengal tigers that rely on the area’s mangrove forest, the largest in the world. Higher waters erode this patchwork of islands, called the Sundarbans, and cause salt water to migrate into fresh water, polluting the tigers’ drinking source. Tigers must find new freshwater sources and move to higher ground, escalating conflicts with communities living there.
2. Deforestation
Cutting down forests accelerates climate change while pushing species like the critically endangered Sumatran tiger to the brink of extinction. Unsustainably cultivated palm oil plantations are fast replacing Indonesia’s forests. This deforestation destroys important habitat, and could leave Sumatran tigers more vulnerable to illegal wildlife trafficking.
Keeping Indonesia’s forests intact helps protect tigers and address the impacts of climate change. CI is working in Indonesia, Brazil and other key palm-oil-producing countries to keep deforestation out of palm oil supply chains.
3. Temperature changes
Shifting temperatures are altering habitat for Siberian tigers in Russia and China, as Korean pine forests give way to fir and spruce trees — meaning less prey for hungry tigers that prefer to hunt in pine forests. Fewer than 600 Siberian, or Amur, tigers remain, heralding the possible extinction of the world’s largest cat within the next 100 years.
4. Natural disasters
As climate change accelerates, scientists predict more frequent wildfires in the remote regions where Siberian tigers live. Longer, hotter and drier wildfire seasons are the new reality, threatening Siberian tiger habitat and food supplies.

Saving animals through religions
Famous religions can play a serious role in saving animals specially extinguishing animals like tigers. All religions make a big limitation on hunting animals specially Islam. All living beings – humans, birds, animals, insects etc – are worthy of consideration and respect. Religions has always viewed animals as a special part of God’s creation. Mankind is responsible for whatever it has at its disposal, including animals whose rights must be respected. However, without doubt religions have helped saving animals by encouraging their followers to avoid poaching and respecting them.
Christian view:
Many people say that when God created animals, he made them to be less significant than humans and that they were there solely for human usage. Christian thinkers believed that human beings were greatly superior to animals. They taught that human beings could treat animals as badly as they wanted. This however is not the sole feeling.  Modern Christians generally take a much more pro-animal line. Nowadays it is generally suggested that it is allowed to make some use of animals, but always bearing in mind that they have value to God. Christians started to show some compassion for animals after a few Christian saints preached to animals such as, St Antony of Padua who preached to fish and St Bridid who protected Cows. St Francis of Assisi was one of the main saints who preached to the birds and became the most popular pro-animal Christian figure. So it stands, we have two very different strands of Christian thought. One permits hunting and complete domination of all of God’s creatures. The other considers the fact that hunting is unfair to the animals. Of coarse many of the Christians that are for the most part against animal rights when it comes to eating meat are against hunting animals for sport as they feel it is cruel and unfair. Today that is the general feeling among Christians who believe mainly the God created everything including animals and that they should be shown compassion just like humans. Although there is nothing in the bible that say there is anything wrong with animal hunting, it is a moral decision that most Christians decide against.
Islam view:
The Holy Qur’an, the Hadith, and the history of Islamic civilization offer many examples of kindness, mercy, and compassion for animals. According to Islamic principles, animals have their own position in the creation hierarchy and humans are responsible for their well-being and food.
Islam strongly asks Muslims to treat animals with compassion and not to abuse them. The Holy Qur’an states that all creation praises God, even if this praise is not expressed in human language. "And the earth, He has assigned it to all living creatures" (Qur'an 55:10).
Prophet Muhammad (Peace Be Upon Him) often chastised his Companions who mistreated animals, and spoke to them about the need for mercy and kindness. “Whoever is merciful even to a sparrow, Allah will be merciful to him on the Day of Judgment.” “A good deed done to an animal is like a good deed done to a human being, while an act of cruelty to an animal is as bad as cruelty to a human being.” The Messenger of Allah (SAW) once passed by a camel that was so emaciated that its back had almost reached its stomach. He said, “Fear Allah in these beasts who cannot speak.” (Abu Dawud) Humans were created by Allah, the Almighty, to be custodians and guardians of the Earth. Killing without need- that is killing for fun- is not permissible. The Companions said,”O Allah’s Messenger! Is there a reward for us in serving the animals?” He replied: “There is a reward for serving any living being.” In Islam, hunting for sport is prohibited. Muslims may only hunt as is needed to meet their requirements for food. This was common during the time of the Prophet Muhammad, and he condemned it at every opportunity.
In the Islamic religion, the people are only allowed to hunt for food and under no circumstance for sport. Muslims believe that all living creatures were made by Allah and that he loves all animals as they exist for the benefit of human beings and they must be treated with kindness and compassion. According to Islam, permission to hunt is only granted under the strict condition that God be remembered while taking such life, the slaughterer must say the name of Allah before making the cut to the animal’s throat. But yet again this only refers to hunting for food, not for sport which is completely disallowed. 
So in conclusion you can see that most religions are against all forms of animal hunting. More traditional believers of their religion are more likely to be for it. But as times have moved on and many new laws have been put into place, the views on hunting have become a lot more compassionate. So people who were previously for hunting have had to change their opinions as it is less expectable in society today. All the Gods encourage respect for all life, but animals are still seen as been the under dominant being.