There is reason to hope that the global population could drop to 4 or 5 billion by 2200.
Gwynne Dyer has worked as a journalist, broadcaster and lecturer on international affairs for more than 20 years; his articles are published in 45 countries. His book, "Climate Wars," deals with the geopolitical implications of climate change and has been translated into Japanese, French, Russian, Chinese and a number of other languages.
For Gwynne Dyer's latest contributions to The Japan Times, see below:
It will be surprising if at least half a million Hong Kong residents don't take up the U.K.'s offer of residency.
The Russian president is scared, and he's probably right to be.
China sends India a message by bringing clubs to a gunfight.
It's a good idea as devastated economies reopen, but it's no magic bullet.
Race relations in the U.S. are still worse than almost anywhere else.
Hong Kong retains a residual value for Beijing, but it shouldn’t push its luck.
People who live in areas with extreme weather know storms are getting worse. Now there is hard data to prove it.
The social and economic changes that might deal with the mass destruction of jobs by automation are being road-tested right now.
The collapse of production and investment in the oil industry is hard on the millions of people who make their livings from it, but the writing has been on the wall for some time.