Meeting these huge new agricultural demands will be one of the greatest challenges of the 21st century. At present, it is completely unclear how (and if) we can do it.

If this wasn't enough, we must also address the massive environmental impacts of our current agricultural practices, which new evidence indicates rival the impacts of climate change. Consider the following.

Already, we have cleared or converted more than 35 percent of the earth's ice-free land surface for agriculture, whether for croplands, pastures or rangelands. In fact, the area used for agriculture is nearly 60 times larger than the area of all of the world's cities and suburbs. Since the last ice age, nothing has been more disruptive to the planet's ecosystems than agriculture. What will happen to our remaining ecosystems, including tropical rainforests, if we need to double or triple world agricultural production, while simultaneously coping with climate change?
Yes, it is an inconvenient truth as the origi

Yes, it is an inconvenient truth as the original article suggests. Maybe it is time to take our blinkers off!!! The related issues of water shortage, contamination, imbalances around the globe etc warrant that we look at this without our blinkers.

There are a lot of pieces to the jigsaw of warming. Which to tackle so that the politicians look good, is the only thing worrying them.