According to the United Nations, sometime around 2050, the planet’s human population will be close to ten billion, a threshold that will stress many of the world’s most important systems, especially agriculture.

For a nation that likes to talk about the weather, the British have had much cause for conversation of late. Nine of the ten warmest years in meteorological history occurred this millennium and winter 2015 was the worst since records began in 1910.

As 2018 draws to a close, powerful tropical cyclones continue to make headlines. In August, tropical cyclone Lane wrought huge damage in the US; it was quickly followed by Hurricane Florence. Most tropical cyclones – the word is used interchangeably with “hurricanes” – of this kind originate in the North Atlantic Ocean, where they’re fuelled by the warm Gulf Stream.

The world’s leading climate scientists have warned there is only a dozen years for global warming to be kept to a maximum of 1.5C, beyond which even half a degree will significantly worsen the risks of drought, floods, extreme heat and poverty for hundreds of millions of people.

A new study from Stanford University suggests that the kind of hot, dry conditions that can shrink crop yields, destabilize food prices and lay the groundwork for devastating wildfires are increasingly striking multiple regions simultaneously as a result of a warming climate.

As COP24 in Poland reaches its mid-point, it is becoming distressingly obvious that reaching the Paris Agreement goal of limiting global warming to well below 2 degrees Centigrade will be extremely challenging. 

“Don’t talk to me until I’ve had my coffee” is a cliché that’s likely led to more HR incidents than laughs. But it’s supposed to be funny because it’s true. Most workplaces run on coffee, and the thought of going without a cup of joe to jumpstart productivity sends a lot of people into a panic.

A radical decrease in greenhouse gas emissions is needed if farmers are to have time to prepare for major changes in rainfall that could decimate crops, researchers said in a report released. 

The world isn’t cutting carbon emissions anywhere near quickly enough, a senior executive at JP Morgan Asset Management told clients this week – and changing that will require far harder choices than most people realise.

Investors be warned: If the planet heats up by more than two degrees, it’s going to get a lot harder to make money.

That’s the conclusion of investment advisory firm Mercer, which modelled the financial fallout from two, three and four degrees Celsius of global warming through 2100 in a report released Monday.

The report marks one of the first attempts to model sector-specific investment risks from climate change over decades. If warming is limited to no more than two degrees, coal and other fossil fuels lose the most in value, because countries have shifted toward cleaner energy. If temperatures rise further, sectors with the biggest losses will include industrials and agriculture.

“Asset owners should consider climate change at every stage of the investment process, from investment beliefs, policy and process to portfolio construction decisions,” said Deb Clarke, global head of investment research for Mercer, which is owned by Marsh & McLennan Cos.

The warning is the latest from the financial sector of the physical and financial risks posed by rising temperatures. While some investment strategists think climate change will offer opportunities, others warn of physical and social damage cascading across the economy.

Limiting global warming to two degrees would cause significant losses between now and 2030 in coal, oil and gas, and electric utilities, according the report. Those losses would be offset by higher returns on renewable energy investments.

“On the two-degree scenario, our broad view is that the impact overall on GDP is pretty negligible,” Steven Sowden, a principal at Mercer and one of the report’s authors, said in a phone interview.

If warming is allowed to exceed that level, however, investors would have few good options.

Three degrees of warming would spare most of the energy sector from significant losses, Mercer found, with the exception of coal. But the damage from extreme weather events would cause negative returns for almost every other sector between now and 2030, including financials, agriculture, industrials and consumer staples.

Those losses would accelerate by 2050. For most sectors, the effects of four degrees of warming would be even worse.

Mercer said its model suggests climate change would depress the economy and weigh on interest rates. While most first-world government bonds could benefit from investors seeking safe havens against climate risks, Australia and New Zealand government bonds could be sensitive to physical damage caused by extreme weather events and resource scarcity.

Worldwide real estate would also suffer a net loss, Sowden said. While rising seas and more intense hurricanes would likely push people inland, increasing the value of land that is now sparsely inhabited, those gains would be swamped by the loss in value — or simply the outright loss — of wide swaths of coastal property. The land that remains inhabitable would become increasingly expensive to insure.

“These scenarios are negative for global growth, and they’re not really great for anyone,” Sowden said. Among the few areas of the economy he said were likely to have positive returns in a beyond-two-degrees scenario: Disaster-mitigation infrastructure, such as flood-wall defences.

Mercer recommends governments take action to stick to their Paris 2015 climate goal commitments, and that investors increase their holdings of sustainable infrastructure and renewable energy assets to take advantage of the shift.

While scientists are cautious to link any single weather event to global warming, they’ve built consensus around the probability that more powerful floods, fires, droughts and storms will occur with greater frequency as the Earth gets hotter.

The United Nations wants to hold average temperature increases to well below 2 degrees Celsius, which would still represent the quickest shift in the climate since the last ice age ended some 10 000 years ago.

Extreme weather events are the most threatening global risks this year, the World Economic Forum said in a report published January. That same month, the US Defense Department warned climate change could compromise US security, with rising seas increasing flood risk to military bases and drought-fueled wildfires endangering those inland.

As those warnings multiply, some fund managers have been slow to incorporate the dangers of global warming into their investment decisions, Sowden said. But as climate change advances, asset prices could quickly shift to reflect the risk — something he said is likely to happen within the next five years.

“If the market starts to price in these impacts, it could start to have material impacts, especially at the sector level, in a relatively short period of time,” Sowden said.

This is the rallying cry I heard on my recent visit to Tuvalu, a stop on my Pacific tour to the frontlines of the global climate emergency. I was there to show solidarity with those suffering the worst impacts of climate change and to draw attention to the innovative climate action underway in the region.

The world's top ten crops - barley, cassava, maize, oil palm, rapeseed, rice, sorghum, soya bean, sugarcane and wheat - supply a combined 83% of all calories produced on cropland.

The first question at the end  “Responses to Our Changing Climate,” was one farmers have been asking for months: “What is causing all of this rain, and when will it end?”

The effects of the changing climate, which is, of course, a global challenge, have been felt in Sub-Saharan Africa and parts of Asia in the recent past. This has been through erratic rainfalls and more frequent occurrences of droughts and floods.

The IFA2030 fertilizer industry strategic review exercise is looking at how how the world may change by 2030.

When Cyclone Idai barrelled over the Mozambican port of Beira on the east coast of Africa in March this year, mop-up crews estimated that the record-breaking storm had razed 90% of the city’s infrastructure.

The Intergovernmental Panel on Climate Change has released a special report outlining what would need to be done to keep the world from warming up by more than 1.5°C.

At its heart, climate change denial is a conflict between facts and values. People deny the climate crisis because, to them, it just feels wrong.

An international team of scientists has issued a clear and unequivocal warning that planet Earth is facing a climate emergency. In a declaration endorsed by more than 11,000 signatories from 153 countries, they stress that “untold human suffering” is unavoidable without deep and lasting shifts in human activities that contribute to greenhouse gas emissions.

It seems curious timing, doesn’t it, that the week that the British medical journal The Lancet came out with the recommendation to reduce our beef consumption by 90 per cent, that the new Canada Food Guide would mirror the recommendations by saying we need to reduce our consumption of red meat and sugar.