The letter comes as an IPCC special report on the impact of global warming has highlighted that the world is completely off track on keeping the temperature rise under 1.5 degrees C.
The report underscores the urgency of this Agreement and its ambitious target.
"Parties and governments that actually understand the science and believe in action need to be more courageous than they're being", he said. It notes that the contributions of glaciers to sea level rise in the present century can not be distinguished statistically. For climate change "hotspots" - hot, dry and water-stressed countries like Botswana and Namibia in southern Africa - local warming and drying will be greater than the global average.
This week's report from global scientists was stark and urgent.
Drought, flooding, extreme heat, increased poverty.
"The most important thing in that report is that electricity emissions have declined by 13.9 percent in the year to March 2018", she said.
Australian Conservation Foundation chief executive Kelly O'Shanassy called on the government to change tactics.
As one of the countries hardest hit by climate change, Vietnam has been actively performing worldwide commitments and exerting efforts to ease its impacts, on official has said.
Project xCloud: Microsoft revealed the future of gaming
The system is being tested on mobile devices via touch input and with a Xbox Wireless Controller connected via Bluetooth. It could be a while before we hear more about when we can get our hands on Project xCloud and test it out for ourselves.
This chapter also describes the effects of glacier retreat on social and economic sectors.
Yet, the USA never moved to curtail fossil fuel use. Since glaciers are a "critical resource" for tourism, they might affect this sector, though the report notes "limited analyses of projected risks associated with 1.5° versus 2°C are available".
But more heartening perhaps is to think - on both the renewables-industry and climate-change fronts - of the impact on the global energy industry of the nation's planned policy shift to wind and solar auctions as soon as 2019. The Supplementary Material for this chapter includes a table titled "Overarching adaptation options".
The data in the UN's new document is unlikely to sway Trump, who has vowed to pull the USA out of the Paris Agreement and has taken steps to dismantle every major policy created to reduce the nation's carbon footprint.
"This change can happen in two ways: in our collected effect on the climate and biodiversity, and the runaway effect of powerful new technologies, such bio, cyber and artificial intelligence".
European Union environment ministers also reiterated the bloc's commitment to the Paris Agreement and implementing ambitious policies.
The powerful stories of glaciers, in conjunction with the other elements of SR1.5, may provide some of the motivation that is required for the world to undertake the challenging steps to reach these goals.
By 2100, the likelihood of the Arctic Ocean being without sea ice in the summer would be once per century with global warming of 1.5 degrees Celsius, compared with at least once per decade with 2 degrees Celsius. That means, she said, electrifying everything.