Mark July 19 on Your Calendar

When you wake up on July 20, it will be a completely different world you will be allowed to populate, for the time being.

Incidentally, Windows screen saver looks like this today:

World Population Day

We are living in a full house, and it is getting fuller. With 8.2 billion people and counting, World Population Day highlights how that growth affects cities, food and the future. First observed in 1989, the day focuses on how unchecked population growth affects sustainability. The event was inspired by Five Billion Day in 1987, which marked the approximate date when the global population hit that milestone. As cities expand, green spaces shrink and agriculture competes for limited land and water resources. But there is a way forward—investing in education, improving access to healthcare and building smarter cities can balance growth with sustainability.

On a global scale, India remains the most populous country in 2025 with over 1.46 billion people, followed by China at 1.41 billion. Canada's population is estimated at over 40 million, with steady growth driven largely by immigration and urban expansion. Tokyo, the world's largest city with around 37.2 million people, illustrates the realities of high-density urban life: overcrowded spaces, transport congestion and rising demand for services. World Population Day is more than a head count—it's a call for better planning and long-term thinking to ensure future generations can thrive on a planet with finite resources.