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Ice Surprises – Arctic and Antarctic Ice Sheets Are Stabilizing and Growing

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The Honest Broker The Honest Broker Roger Pielke Jr.'s avatar Roger Pielke Jr.

New climate research in science and policy context

Earlier this week the New York Post asked me to help its readers make sense of some surprising new research on ice dynamics at both poles. The new research appears in a new peer-reviewed paper and a preprint that was just posted.

At the South Pole, Wang et al. 2025 find a record accumulation of ice on the Antarctic ice sheet over the period 2021 to 2023, following a steady decrease from 2002 to 2021. The data comes from NASA’s GRACE series of satellites, which have the ability to precisely measure ice mass.

The figure below shows that the recent accumulation is small in the context of the multi-decadal decline, but is still characterized by the paper’s authors as a “significant reversal.” The paper makes no predictions of whether or how long the accumulation might continue.

At the other end of the planet, at the North Pole, a new preprint by England et al. identifies a “surprising, but not unexpected multi-decadal pause in Arctic sea ice loss.”¹ Their data can be seen below.

From the caption to the figure: “(a,b )Observed sea ice area [106 km2] 1979-2024, (c,d) 20 year-trends of September sea ice area [106 km2/decade] with varying end year from 1998 to 2024, in which the red shaded envelope shows the bounds inside which a linear trend is not statistically significant according to a t-test at 95% confidence.” Source: England et al.

Disucssing these new papers and their significance, my op-ed for the NY Post starts as follows:

When it comes to climate change, to invoke one of Al Gore’s favorite sayings, the biggest challenge is not what we don’t know, but what we know for sure but just isn’t so.

Two new studies show that the Earth’s climate is far more complex than often acknowledged, reminding us of the importance of pragmatic energy and climate policies.

One of them, led by researchers at China’s Tongji University, finds that after years of ice sheet decline, Antarctica has seen a “surprising shift”: a record-breaking accumulation of ice.

The paper takes advantage of very precise measurements of Antarctic ice mass from a series of NASA satellites called GRACE (Gravity Recovery and Climate Experiment).

Since the first GRACE satellite was launched in 2002, Antarctica has seen a steady decline in the total mass of its glaciers. Yet the new study found the decline reversed from 2021 to 2023.

Melting Antarctic ice contributes to global sea-level rise, so a reversal of melting will slow that down. Understanding the dynamics of ice mass on Antarctica is thus essential.

The recent Antarctica shift makes only a small dent in the overall ice loss from 2022, but comes as a surprise nonetheless.

A second new paper, a preprint now going through peer review, finds a similar change at the opposite end of the planet.

Antarctic ice has made a turnaround, scientists say, with an increase in ice mass after years of depletion.

Antarctic ice has made a surprising rebound in mass, scientists say

“The loss of Arctic sea ice cover has undergone a pronounced slowdown over the past two decades, across all months of the year,” the paper’s US and UK authors write.

They suggest that the “pause” in Arctic sea ice decline could persist for several more decades.

Together, the two studies remind us that the global climate system remains unpredictable, defying simplistic expectations that change moves only in one direction.

In 2009, then-Sen. John Kerry warned that the Arctic Ocean would be ice-free by 2013: “Scientists tell us we have a 10-year window — if even that — before catastrophic climate change becomes inevitable and irreversible,” he said.

Today, six years after that 10-year window closed, catastrophic climate change has not occurred, even as the planet has indeed continued to warm due primarily to the combustion of fossil fuels.

Partisans in the climate debate should learn from Kerry’s crying wolf.

On one side, catastrophizing climate change based on the most extreme claims leads to skepticism when the promised apocalypse fails to occur on schedule.

On the other side, studies like the two surprising polar-ice papers reveal climate complexities, but don’t prove climate change isn’t real and serious. . .

This last point is important — climate research is not a scoreboard in a Manichean debate, but instead offers certainties, uncertainties, and even areas of total ignorance that establish a nuanced context for developing robust mitigation and adaptation policies.

The rest of my piece discusses this context. Please head over to the NY Post to read the whole thing and then come back to THB and tell me what you think.

One bit of my original draft was cut for space reasons. Here is that part:

Core understandings of climate science have remained remarkably constant over many decades – Humans affect the climate system in many ways, including greenhouse gas emissions, but also through land management, air pollution, and vegetation dynamics. At a planetary scale the net effect of these changes – driven by carbon dioxide emissions from the burning of coal, natural gas, and oil – is a warming of the planetary system. Anticipating regional and local consequences is far more challenging.

Irreducible uncertainties mean that climate variability and change are about risk management. As the late climate scientist Steve Schneider lamented in 2002, “I readily confess a lingering frustration: uncertainties so infuse the issue of climate change that it is still impossible to rule out either mild or catastrophic outcomes, let alone provide confident probabilities for all the claims and counterclaims made about environmental problems.”

Risk management means that as we balance competing objectives in energy policy we should look for opportunities to reduce costs, increase access, ensure security and reduce the human influences on the environment.

The published version ends with may call for policy makers to keep their eyes on the ball:

The surprises revealed by the two new papers about polar ice also remind us that we need to be prepared for unexpected behavior of the climate system, regardless of the underlying causes of change.

History tells us that climate can shift abruptly, with profound consequences for society.

For instance, the 1870s saw a wide range of climate extremes across the planet, by some estimates contributing to the deaths of 4% of global population.

More recently, the climate extremes of the 1970s led to many new US government programs focused on monitoring and researching climate, such as the National Oceanic and Atmospheric Administration.

Such efforts are crucially important because we can’t always anticipate the results of research. If we could, we wouldn’t need data and science.

Perhaps the most important lesson to take from the new polar-ice findings is that ongoing efforts in Washington, DC to gut climate data and research are deeply misguided.

The global climate system has more surprises in store for us — and we ignore them at our peril.

Read the whole thing here.

Next week here at THB and elsewhere, I’ll have much more on NOAA and current efforts to gut climate data and research.

Before letting you go today — last week I sat down with John Hook from Fox 10 in Phoenix and engaged in a deep discission of climate science and energy policy. You can see the full interview below. Thanks to John for the opportunity and the informed questions — I enjoyed the interview and the chance to explore nuances of climate and energy.

If you value the efforts here at The Honest Broker to contextualize science in policy and politics,

please consider subscribing, sharing, and supporting.

THB exists because of your support.

1 If the pause was “not unexpected” then why was it also “surprising”? But I digress.

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Biden autopen scandal: Did unelected aides commit fraud during his final days in office?

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From LifeSiteNews

By Jarrett Stepman

Biden administration aides signed pardons and executive orders by autopen in the president’s absence, which Texas Sen. Ted Cruz said could render them ‘null and void.’

The so-called autopen scandal appears to be getting worse for former President Joe Biden as more information comes to light.

Biden, some of his former staffers, and a handful of thought leaders in the Democratic Party have attempted to triage the message about the inner workings of the previous presidential administration. But tangible evidence is mounting that it was effectively run like a kind of politburo.

The New York Times released an interesting report Sunday afternoon that included a short interview with Biden saying he made decisions on clemency that were carried out with an autopen. In the final month of his presidency, Biden pardoned a number of high-profile people and granted clemency to an additional 1,500.

High-profile examples included his son, Hunter Biden, members of the January 6 committee, former National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci, and former Chairman of the Joint Chiefs Gen. Mark Milley.

“Everybody knows how vindictive [President Donald Trump] is, so we knew that they’d do what they’re doing now,” Biden said in the Times interview. “I consciously made all those decisions.”

Some of the people on the 1,500-person list were violent criminals, including virtually everyone on death row.

Biden insisted that he was “conscious” of all his administration’s decisions (a contention not helped by his rambling responses).

But snippets from the Times’ report calls that claim into question.

On Biden’s last day in office Biden’s Chief of Staff Jeff Zients gave approval to use the autopen in the cases of Fauci and Milley, according to the Times.

In addition, the Times reported that Biden’s staff who drafted the blubs for acts of clemency admitted that they weren’t in the room with the president when approval for signing them was made.

Whatever the intent of Biden or this report, it certainly didn’t clear up the suspicion that Biden wasn’t mentally competent to make decisions and that his staff and perhaps other people were essentially usurping executive power they didn’t have.

When you combine that with the recent decision by Biden’s White House doctor to continually plead the Fifth Amendment to remain silent at a recent closed-door House hearing and former first lady Jill Biden’s Chief of Staff Anthony Bernal suddenly becoming uncooperative with the autopen investigation, it certainly raises suspicion.

And that’s a potentially enormous scandal, even bigger than the media’s cover-up of the president’s health. Not only was the country put in danger with an out-to-lunch commander in chief, but members of his staff may have been wielding unconstitutional powers on his behalf.

Trump said to reporters Monday that the autopen scandal may be one of the biggest in American history, and he may be correct.

It’s a big stinking deal, to paraphrase Biden in his more lucid days.

Sen. Ted Cruz, R-Texas, wrote on X that “as a legal matter, that ANY pardon Biden did not ‘individually approve’ is NULL & VOID.”

Cruz may have come to this conclusion based on the testimony of a witness at a recent Senate hearing on the autopen use and abuse. Cruz asked Theodore Wold, a visiting fellow for law and technology policy at The Heritage Foundation, whether an executive order signed by a staffer who autopen signs it without the president’s knowledge is legally binding.

Wold answered, “No.”

Unfortunately, there is very little precedent here to rely on to determine what the status of those pardons is. So, this may end up being more of a political battle than a legal dilemma.

I suspect this is why close associates of Biden are becoming closed lipped. This is about more than just Biden’s legacy or the media’s shame. It’s about whether Biden’s pardons are legally binding. It’s about whether members of the Biden White House misused their power. Did they commit fraud?

Sen. Eric Schmitt, R-Mo., who is the chairman of a Senate committee looking into the autopen use, suggested that’s a possibility.

One way or another, the American people deserve answers.

Reprinted with permission from The Daily Signal.

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Canada must address its birth tourism problem

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Macdonald-Laurier Institute

By Sergio R. Karas for Inside Policy

One of the most effective solutions would be to amend the Citizenship Act, making automatic citizenship conditional upon at least one parent being a Canadian citizen or permanent resident.

Amid rising concerns about the prevalence of birth tourism, many Western democracies are taking steps to curb the practice. Canada should take note and reconsider its own policies in this area.

Birth tourism occurs when pregnant women travel to a country that grants automatic citizenship to all individuals born on its soil. There is increasing concern that birthright citizenship is being abused by actors linked to authoritarian regimes, who use the child’s citizenship as an anchor or escape route if the conditions in their country deteriorate.

Canada grants automatic citizenship by birth, subject to very few exceptions, such as when a child is born to foreign diplomats, consular officials, or international representatives. The principle known as jus soli in Latin for “right of the soil” is enshrined in Section 3(1)(a) of the Citizenship Act.

Unlike many other developed countries, Canada’s legislation does not consider the immigration or residency status of the parents for the child to be a citizen. Individuals who are in Canada illegally or have had refugee claims rejected may be taking advantage of birthright citizenship to delay their deportation. For example, consider the Supreme Court of Canada’s ruling in Baker v. Canada. The court held that the deportation decision for a Jamaican woman – who did not have legal status in Canada but had Canadian-born children – must consider the best interests of the Canadian-born children.

There is mounting evidence of organized birth tourism among individuals from the People’s Republic of China, particularly in British Columbia. According to a January 29 news report in Business in Vancouver, an estimated 22–23 per cent of births at Richmond Hospital in 2019–20 were to non-resident mothers, and the majority were Chinese nationals. The expectant mothers often utilize “baby houses” and maternity packages, which provide private residences and a comprehensive bundle of services to facilitate the mother’s experience, so that their Canadian-born child can benefit from free education and social and health services, and even sponsor their parents for immigration to Canada in the future. The financial and logistical infrastructure supporting this practice has grown, with reports of dozens of birth houses in British Columbia catering to a Chinese clientele.

Unconditional birthright citizenship has attracted expectant mothers from countries including Nigeria and India. Many arrive on tourist visas to give birth in Canada. The number of babies born in Canada to non-resident mothers – a metric often used to measure birth tourism – dropped sharply during the COVID-19 pandemic but has quickly rebounded since. A December 2023 report in Policy Options found that non-resident births constituted about 1.6 per cent of all 2019 births in Canada. That number fell to 0.7 per cent in 2020–2021 due to travel restrictions, but by 2022 it rebounded to one per cent of total births. That year, there were 3,575 births to non-residents – 53 per cent more than during the pandemic. Experts believe that about half of these were from women who travelled to Canada specifically for the purpose of giving birth. According to the report, about 50 per cent of non-resident births are estimated to be the result of birth tourism. The upward trend continued into 2023–24, with 5,219 non-resident births across Canada.

Some hospitals have seen more of these cases than others. For example, B.C.’s Richmond Hospital had 24 per cent of its births from non-residents in 2019–20, but that dropped to just 4 per cent by 2022. In contrast, Toronto’s Humber River Hospital and Montreal’s St. Mary’s Hospital had the highest rates in 2022–23, with 10.5 per cent and 9.4 per cent of births from non-residents, respectively.

Several developed countries have moved away from unconditional birthright citizenship in recent years, implementing more restrictive measures to prevent exploitation of their immigration systems. In the United Kingdom, the British Nationality Act abolished jus soli in its unconditional form. Now, a child born in the UK is granted citizenship only if at least one parent is a British citizen or has settled status. This change was introduced to prevent misuse of the immigration and nationality framework. Similarly, Germany follows a conditional form of jus soli. According to its Nationality Act, a child born in Germany acquires citizenship only if at least one parent has legally resided in the country for a minimum of eight years and holds a permanent residence permit. Australia also eliminated automatic birthright citizenship. Under the Australian Citizenship Act, a child born on Australian soil is granted citizenship only if at least one parent is an Australian citizen or permanent resident. Alternatively, if the child lives in Australia continuously for ten years, they may become eligible for citizenship through residency. These policies illustrate a global trend toward limiting automatic citizenship by birth to discourage birth tourism.

In the United States, Section 1 of the Citizenship Clause of the Fourteenth Amendment to the Constitution prescribes that “All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside.” The Trump administration has launched a policy and legal challenge to the longstanding interpretation that every person born in the US is automatically a citizen. It argues that the current interpretation incentivizes illegal immigration and results in widespread abuse of the system.

On January 20, 2025, President Donald Trump issued Executive Order 14156Protecting the Meaning and Value of American Citizenship, aimed at ending birthright citizenship for children of undocumented migrants and those with lawful but temporary status in the United States. The executive order stated that the Fourteenth Amendment’s Citizenship Clause “rightly repudiated” the Supreme Court’s “shameful decision” in the Dred Scott v. Sandford case, which dealt with the denial of citizenship to black former slaves. The administration argues that the Fourteenth Amendment “has never been interpreted to extend citizenship universally to anyone born within the United States.” The executive order claims that the Fourteenth Amendment has “always excluded from birthright citizenship persons who were born in the United States but not subject to the jurisdiction thereof.” The order outlines two categories of individuals that it claims are not subject to United States jurisdiction and thus not automatically entitled to citizenship: a child of an undocumented mother and father who are not citizens or lawful permanent residents; and a child of a mother who is a temporary visitor and of a father who is not a citizen or lawful permanent resident. The executive order attempts to make ancestry a criterion for automatic citizenship. It requires children born on US soil to have at least one parent who has US citizenship or lawful permanent residency.

On June 27, 2025, the US Supreme Court in Trump v. CASA, Inc. held that lower federal courts exceed their constitutional authority when issuing broad, nationwide injunctions to prevent the Trump administration from enforcing the executive order. Such relief should be limited to the specific plaintiffs involved in the case. The Court did not address whether the order is constitutional, and that will be decided in the future. However, this decision removes a major legal obstacle, allowing the administration to enforce the policy in areas not covered by narrower injunctions. Since the order could affect over 150,000 newborns each year, future decisions on the merits of the order are still an especially important legal and social issue.

In addition to the executive order, the Ban Birth Tourism Act – introduced in the United States Congress in May 2025 – aims to prevent women from entering the country on visitor visas solely to give birth, citing an annual 33,000 births to tourist mothers. Simultaneously, the State Department instructed US consulates abroad to deny visas to applicants suspected of “birth tourism,” reinforcing a sharp policy pivot.

In light of these developments, Canada should be wary. It may see an increase in birth tourism as expectant mothers look for alternative destinations where their children can acquire citizenship by birth.

Canadian immigration law does not prevent women from entering the country on a visitor visa to give birth. The Immigration and Refugee Protection Act (IRPA) and the associated regulations do not include any provisions that allow immigration officials or Canada Border Services officers to deny visas or entry based on pregnancy. Section 22 of the IRPA, which deals with temporary residents, could be amended. However, making changes to regulations or policy would be difficult and could lead to inconsistent decisions and a flurry of litigation. For example, adding questions about pregnancy to visa application forms or allowing officers to request pregnancy tests in certain high-risk cases could result in legal challenges on the grounds of privacy and discrimination.

In a 2019 Angus Reid Institute survey, 64 per cent of Canadians said they would support changing the law to stop granting citizenship to babies born in Canada to parents who are only on tourist visas. One of the most effective solutions would be to amend Section 3(1)(a) of the Citizenship Act, making it mandatory that at least one parent be a Canadian citizen or permanent resident for a child born in Canada to automatically receive citizenship. Such a model would align with citizenship legislation in countries like the UK, Germany, and Australia, where jus soli is conditional on parental status. Making this change would close the current loophole that allows birth tourism, without placing additional pressure on visa officers or requiring new restrictions on tourist visas. It would retain Canada’s inclusive citizenship framework while aligning with practices in other democratic nations.

Canada currently lacks a proper and consistent system for collecting data on non-resident births. This gap poses challenges in understanding the scale and impact of birth tourism. Since health care is under provincial jurisdiction, the responsibility for tracking and managing such data falls primarily on the provinces. However, there is no national framework or requirement for provinces or hospitals to report the number of births by non-residents, leading to fragmented and incomplete information across the country. One notable example is BC’s Richmond Hospital, which has become a well-known birth tourism destination. In the 2017–18 fiscal year alone, 22 per cent of all births at Richmond Hospital were to non-resident mothers. These births generated approximately $6.2 million in maternity fees, out of which $1.1 million remained unpaid. This example highlights not only the prevalence of the practice but also the financial burden it places on the provincial health care programs. To better address the issue, provinces should implement more robust data collection practices. Information should include the mother’s residency or visa status, the total cost of care provided, payment outcomes (including outstanding balances), and any necessary medical follow-ups.

Reliable and transparent data is essential for policymakers to accurately assess the scope of birth tourism and develop effective responses. Provinces should strengthen data collection practices and consider introducing policies that require security deposits or proof of adequate medical insurance coverage for expectant mothers who are not covered by provincial healthcare plans.

Canada does not currently record the immigration or residency status of parents on birth certificates, making it difficult to determine how many children are born to non-resident or temporary resident parents. Including this information at the time of birth registration would significantly improve data accuracy and support more informed policy decisions. By improving data collection, increasing transparency, and adopting preventive financial safeguards, provinces can more effectively manage the challenges posed by birth tourism, and the federal government can implement legislative reforms to deal with the problem.


Sergio R. Karas, principal of Karas Immigration Law Professional Corporation, is a certified specialist in Canadian citizenship and immigration law by the Law Society of Ontario. He is co-chair of the ABA International Law Section Immigration and Naturalization Committee, past chair of the Ontario Bar Association Citizenship and Immigration Section, past chair of the International Bar Association Immigration and Nationality Committee, and a fellow of the American Bar Foundation. He can be reached at [email protected]. The author is grateful for the contribution to this article by Jhanvi Katariya, student-at-law.

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