Right now, the water level at the dam is within safe limits, but prolonged dry weather could force PNG Power to start power rationing throughout PNG.

Meanwhile, this year’s monsoon season is delivering torrential rain and dreadful flooding to Pakistan. More than a thousand deaths have been reported by the country's media.

These are part of the major changes in climate that have gripped the world and will threaten human existence of not addressed urgently.

But developed countries, intent to preserve their expensive way of life, are still arguing over what to do while urgent action is needed to save vulnerable nations from disaster, especially those in the Pacific.

News reports tell of more severe, more frequent and unprecedented floods, droughts, forest fires and unbearable rising temperatures around the globe.

A heatwave has been afflicting the population in Europe, China and America.

The rising temperatures ire causing huge forest fires and mega-droughts in the northern hemisphere, with water levels in major rivers and lakes dropping to all-time lows.

In California, USA, people are limited to purchasing five bottles of water at any given time due to high demand because of the heat wave.

In China, the great Yangtze River is drying up with the river bed exposed.

In France, a large bushfire is burning many hectares of forest.

In England, the headwaters of the famous Thames River have dried up.

In Germany, the equally famous Rhine River is also drying up.

Many regions have experienced unusually high temperatures - 40°C or more not being unusual.

In China, people have posted videos on YouTube of the soles of shoes melting and getting stuck on asphalt roads.

Someone demonstrated how hot it was by frying meat on the footpath using the heat wave as fuel.

How the world may look in the year 2100 when five degrees centigrade warmer than at pre-industrial levels. It will still be beautiful and many plants will love the climate, but humans won't

So, all around the world, climate change and rising temperatures are drastically impacting on people's livelihoods and the global economy.

But although climate change is a clear and present danger, very little in terms of action to try and moderate climate has been taken.

The industrialised countries are still squabbling and haggling over the best remedies to apply despite calls for immediate action by vulnerable nation states, especially those in the Pacific.

These more developed countries are intent to preserve their way of life and strengthen their national economies.

But if, in doing this, they continue to impede solutions the consequences will be dire for the fate of the rest of humanity.

With the water level at Yonki dropping further each day, it is a visible sign which we must take heed.

These signs are seen not only in Yonki but around the world.

If there is not rapid action on climate change, the world our children and grandchildren will inherit will be abominable.

The world is getting hotter and with rising temperatures polar ice caps and glaciers are melting, rivers and lakes are drying up, sea levels are rising, islands and atolls face inundation, forest fires are more frequent and more devastating, storms are more violent and droughts are more common.

We see food production falling, animal species disappearing, pandemics becoming more threatening and other serious afflictions continuing to challenge the world over.

The nations of the world must take immediate action on climate change.