It would take decades to centuries long and even could take longer than the year 3000 for the world to be unlivable for humans if the earth continues to warm.
Extreme heat waves and events could make some regions of earth too hot for human survival, even with short exposures, within the next few decades.
A rise in the sea levels as well as increased frequency of extreme weather events could also displace billions of people on earth and could even render some of the vast areas of earth uninhabitable long before the planet does become entirely uninhabitable.
The world will not end in 3000, although there are some potential threats to humanity as well as the planet.
However the specific scenarios which could result in a catastrophic end of the world are not expected to occur within this timeframe.
Things like potential conflicts and global warming could possibly cause significant damage, but they are unlikely to result in the complete extinction of humanity or the destruction.
The earth will remain a habitable planet for a very long time to come, and the sun will not explode or significantly change in a way which would destroy the planet for billions of years yet.
Humans also have a long history and also have demonstrated a capacity for survival and adaptation and it's also reasonable to expect that humanity will still exist in the year 3000 and likely beyond.
There's also the idea that the earth won't be habitable by 2050 although the earth will still be habitable by 2050.
Although by 2050, climate change as well as other environmental issues will impact the planet earth significantly and make some areas of earth less habitable and pose some challenges to human populations.
It's also likely that by 2050, many places will also experience some more extreme weather events, with rising sea levels and also increased heat stress.
By 2050, temperature of the earth are also expected to rise significantly, with some regions of the earth exceeding survivable thresholds of temperatures.
And by 2050, we should expect more frequent and more intense heat waves, floods, droughts and storms.
And coastal areas will also face increased flooding and also erosion as a result of rising sea levels, which will displace people.
And some areas by 2050 may also become uninhabitable as a result of the extreme heat, water scarcity or other climate related factors.
By 2050, continued loss of ecosystems and species will also impact natural resources and could potentially disrupt the food chain.
And air pollution, including ground level ozone and particulate matter is also projected to get worse by 2050 and impact human health.
And an increase in competition for resources such as food and water is also likely and most particularly in regions that are vulnerable.
Although new technologies such as artificial photosynthesis in 2050 and beyond could help to mitigate some of the climate impacts and improve living conditions.