Death by Powerpoint. I have suffered this torture too many times over the years. We all probably have.

So I was a little nervous this morning logging into Climate Reality – Al Gore's 24-hour global-warming warning – as to what I might discover. And, I have to say, my heart immediately sank.

A no-doubt sincere presenter from the Solomon Islands was showing slide after slide of extreme weather events around the world that have occurred over the past year and linking everyone, it seemed, to the rise in anthropogenic greenhouse gas emissions. As anyone who follows the climate debate closely knows, that is a very contentious peg on which to hang your hat. That kind of talk traditionally requires lots of caveats and careful explaining. Done with abandon and raw emotion – as this presenter seemed to be doing – and you are quickly labelled in some quarters as a climate "alarmist".

And, for me, this is one of the key challenges the Climate Reality project faces. Who exactly is it trying to convince with its urgent, sometimes breathless campaign? Is it preaching to the converted? If so, it is doing a good job.

Or is it trying to win over climate sceptics? I suspect not. I get the sense from Climate Reality's tone and focus that it believes sceptics are a lost cause who are beyond redemption or reason.

That leaves the middle ground – the unconverted. Al Gore did a tremendous job connecting with this constituency in his hugely successful, Oscar-winning An Inconvenient Truth in 2006. No single person has ever done as much as Gore to raise global comprehension of both the causes and dangers of climate change.

But that was a long time ago now. The politics of climate change is much more polarised and fraught now than back then – even if the science is, it would seem, hardening – and, for right or wrong, Al Gore is a hugely polarising figure, particularly in his homeland. Whatever he does or says in this arena – no matter how cogent or sensible - will attract scorn and derision from those that just can't see past the man. And that is a huge problem for those who still want to see the world urgently address, as Gore says, the reality of climate change.

I might have misjudged the potency and reach of Climate Reality – I didn't, for example, like its idea of asking people to donate their Facebook and Twitter accounts – so please do share your own thoughts about its strengths and/or weaknesses below. Has there been a segment of the Climate Reality broadcast that you thought worked really well and hit home the "reality"? And will you be tuning in for Gore's final-hour presentation?

However, I still think there is an important, if difficult, question to be asked: despite all his efforts over the past three decades to raise awareness on this issue, is Gore now a help or a hindrance to the cause he cares so passionately about?